Home / 916,010.60-1,374,015.90-384,132.20

Finding the Fourth Proportional to 916,010.60, 1,374,015.90 and 384,132.20

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Solution

The fourth proportional to 916,010.60, 1,374,015.90 and 384,132.20 is: 576,198.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,010.60 : 1,374,015.90 = 384,132.20 : x
  2. Step 2: Convert to fraction form
    916,010.60/1,374,015.90 = 384,132.20/x
  3. Step 3: Cross multiply
    916,010.60x = 1,374,015.90 × 384,132.20
  4. Step 4: Simplify right side
    916,010.60x = 527,803,750,501.98
  5. Step 5: Solve for x
    x = 527,803,750,501.98/916,010.60
  6. Step 6: Final answer
    x = 576,198.30

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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.