Home / 712,462.08-1,068,809.28-338,358.72

Finding the Fourth Proportional to 712,462.08, 1,068,809.28 and 338,358.72

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Solution

The fourth proportional to 712,462.08, 1,068,809.28 and 338,358.72 is: 507,593.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,462.08 : 1,068,809.28 = 338,358.72 : x
  2. Step 2: Convert to fraction form
    712,462.08/1,068,809.28 = 338,358.72/x
  3. Step 3: Cross multiply
    712,462.08x = 1,068,809.28 × 338,358.72
  4. Step 4: Simplify right side
    712,462.08x = 361,640,939,904.92
  5. Step 5: Solve for x
    x = 361,640,939,904.92/712,462.08
  6. Step 6: Final answer
    x = 507,593.25

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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.