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Finding the Fourth Proportional to 539,729.52, 808,511.40 and 495,636.72

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Solution

The fourth proportional to 539,729.52, 808,511.40 and 495,636.72 is: 742,460.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,729.52 : 808,511.40 = 495,636.72 : x
  2. Step 2: Convert to fraction form
    539,729.52/808,511.40 = 495,636.72/x
  3. Step 3: Cross multiply
    539,729.52x = 808,511.40 × 495,636.72
  4. Step 4: Simplify right side
    539,729.52x = 400,727,938,378.61
  5. Step 5: Solve for x
    x = 400,727,938,378.61/539,729.52
  6. Step 6: Final answer
    x = 742,460.67

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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.