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Finding the Fourth Proportional to 616,529.28, 850,469.76 and 501,931.20

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Solution

The fourth proportional to 616,529.28, 850,469.76 and 501,931.20 is: 692,387.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,529.28 : 850,469.76 = 501,931.20 : x
  2. Step 2: Convert to fraction form
    616,529.28/850,469.76 = 501,931.20/x
  3. Step 3: Cross multiply
    616,529.28x = 850,469.76 × 501,931.20
  4. Step 4: Simplify right side
    616,529.28x = 426,877,307,200.51
  5. Step 5: Solve for x
    x = 426,877,307,200.51/616,529.28
  6. Step 6: Final answer
    x = 692,387.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.