Home / 830,017.40-1,245,171.90-297,847.40

Finding the Fourth Proportional to 830,017.40, 1,245,171.90 and 297,847.40

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Solution

The fourth proportional to 830,017.40, 1,245,171.90 and 297,847.40 is: 446,823.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,017.40 : 1,245,171.90 = 297,847.40 : x
  2. Step 2: Convert to fraction form
    830,017.40/1,245,171.90 = 297,847.40/x
  3. Step 3: Cross multiply
    830,017.40x = 1,245,171.90 × 297,847.40
  4. Step 4: Simplify right side
    830,017.40x = 370,871,212,968.06
  5. Step 5: Solve for x
    x = 370,871,212,968.06/830,017.40
  6. Step 6: Final answer
    x = 446,823.42

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Double scale
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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.