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Finding the Fourth Proportional to 521,751.24, 786,180.76 and 429,057.68

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Solution

The fourth proportional to 521,751.24, 786,180.76 and 429,057.68 is: 646,509.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,751.24 : 786,180.76 = 429,057.68 : x
  2. Step 2: Convert to fraction form
    521,751.24/786,180.76 = 429,057.68/x
  3. Step 3: Cross multiply
    521,751.24x = 786,180.76 × 429,057.68
  4. Step 4: Simplify right side
    521,751.24x = 337,316,892,946.24
  5. Step 5: Solve for x
    x = 337,316,892,946.24/521,751.24
  6. Step 6: Final answer
    x = 646,509.04

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.