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Finding the Fourth Proportional to 615,503.81, 921,363.81 and 524,702.10

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Solution

The fourth proportional to 615,503.81, 921,363.81 and 524,702.10 is: 785,440.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,503.81 : 921,363.81 = 524,702.10 : x
  2. Step 2: Convert to fraction form
    615,503.81/921,363.81 = 524,702.10/x
  3. Step 3: Cross multiply
    615,503.81x = 921,363.81 × 524,702.10
  4. Step 4: Simplify right side
    615,503.81x = 483,441,530,409.93
  5. Step 5: Solve for x
    x = 483,441,530,409.93/615,503.81
  6. Step 6: Final answer
    x = 785,440.35

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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.