Home / 742,938.90-1,114,408.35-476,999.70

Finding the Fourth Proportional to 742,938.90, 1,114,408.35 and 476,999.70

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Solution

The fourth proportional to 742,938.90, 1,114,408.35 and 476,999.70 is: 715,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,938.90 : 1,114,408.35 = 476,999.70 : x
  2. Step 2: Convert to fraction form
    742,938.90/1,114,408.35 = 476,999.70/x
  3. Step 3: Cross multiply
    742,938.90x = 1,114,408.35 × 476,999.70
  4. Step 4: Simplify right side
    742,938.90x = 531,572,448,627.50
  5. Step 5: Solve for x
    x = 531,572,448,627.50/742,938.90
  6. Step 6: Final answer
    x = 715,499.55

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.