Home / 420,550.18-580,567.53-267,740.26

Finding the Fourth Proportional to 420,550.18, 580,567.53 and 267,740.26

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Solution

The fourth proportional to 420,550.18, 580,567.53 and 267,740.26 is: 369,614.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,550.18 : 580,567.53 = 267,740.26 : x
  2. Step 2: Convert to fraction form
    420,550.18/580,567.53 = 267,740.26/x
  3. Step 3: Cross multiply
    420,550.18x = 580,567.53 × 267,740.26
  4. Step 4: Simplify right side
    420,550.18x = 155,441,301,429.76
  5. Step 5: Solve for x
    x = 155,441,301,429.76/420,550.18
  6. Step 6: Final answer
    x = 369,614.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.