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Finding the Fourth Proportional to 356,802.80, 534,426.60 and 317,404.40

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Solution

The fourth proportional to 356,802.80, 534,426.60 and 317,404.40 is: 475,414.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,802.80 : 534,426.60 = 317,404.40 : x
  2. Step 2: Convert to fraction form
    356,802.80/534,426.60 = 317,404.40/x
  3. Step 3: Cross multiply
    356,802.80x = 534,426.60 × 317,404.40
  4. Step 4: Simplify right side
    356,802.80x = 169,629,354,317.04
  5. Step 5: Solve for x
    x = 169,629,354,317.04/356,802.80
  6. Step 6: Final answer
    x = 475,414.86

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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.