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Finding the Fourth Proportional to 607,513.30, 911,269.95 and 495,320.20

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Solution

The fourth proportional to 607,513.30, 911,269.95 and 495,320.20 is: 742,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,513.30 : 911,269.95 = 495,320.20 : x
  2. Step 2: Convert to fraction form
    607,513.30/911,269.95 = 495,320.20/x
  3. Step 3: Cross multiply
    607,513.30x = 911,269.95 × 495,320.20
  4. Step 4: Simplify right side
    607,513.30x = 451,370,413,887.99
  5. Step 5: Solve for x
    x = 451,370,413,887.99/607,513.30
  6. Step 6: Final answer
    x = 742,980.30

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Similar ratio
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1.5x scale

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.