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Finding the Fourth Proportional to 587,420.10, 881,130.15 and 350,640.90

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Solution

The fourth proportional to 587,420.10, 881,130.15 and 350,640.90 is: 525,961.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,420.10 : 881,130.15 = 350,640.90 : x
  2. Step 2: Convert to fraction form
    587,420.10/881,130.15 = 350,640.90/x
  3. Step 3: Cross multiply
    587,420.10x = 881,130.15 × 350,640.90
  4. Step 4: Simplify right side
    587,420.10x = 308,960,268,813.14
  5. Step 5: Solve for x
    x = 308,960,268,813.14/587,420.10
  6. Step 6: Final answer
    x = 525,961.35

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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.