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Finding the Fourth Proportional to 538,436.35, 807,654.53 and 528,068.35

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Solution

The fourth proportional to 538,436.35, 807,654.53 and 528,068.35 is: 792,102.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,436.35 : 807,654.53 = 528,068.35 : x
  2. Step 2: Convert to fraction form
    538,436.35/807,654.53 = 528,068.35/x
  3. Step 3: Cross multiply
    538,436.35x = 807,654.53 × 528,068.35
  4. Step 4: Simplify right side
    538,436.35x = 426,496,792,386.78
  5. Step 5: Solve for x
    x = 426,496,792,386.78/538,436.35
  6. Step 6: Final answer
    x = 792,102.53

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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.