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Finding the Fourth Proportional to 402,897.20, 604,540.20 and 284,313.20

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Solution

The fourth proportional to 402,897.20, 604,540.20 and 284,313.20 is: 426,606.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,897.20 : 604,540.20 = 284,313.20 : x
  2. Step 2: Convert to fraction form
    402,897.20/604,540.20 = 284,313.20/x
  3. Step 3: Cross multiply
    402,897.20x = 604,540.20 × 284,313.20
  4. Step 4: Simplify right side
    402,897.20x = 171,878,758,790.64
  5. Step 5: Solve for x
    x = 171,878,758,790.64/402,897.20
  6. Step 6: Final answer
    x = 426,606.98

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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.