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Finding the Fourth Proportional to 738,005.60, 1,107,267.60 and 317,410.40

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Solution

The fourth proportional to 738,005.60, 1,107,267.60 and 317,410.40 is: 476,227.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,005.60 : 1,107,267.60 = 317,410.40 : x
  2. Step 2: Convert to fraction form
    738,005.60/1,107,267.60 = 317,410.40/x
  3. Step 3: Cross multiply
    738,005.60x = 1,107,267.60 × 317,410.40
  4. Step 4: Simplify right side
    738,005.60x = 351,458,251,823.04
  5. Step 5: Solve for x
    x = 351,458,251,823.04/738,005.60
  6. Step 6: Final answer
    x = 476,227.08

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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.