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Finding the Fourth Proportional to 607,487.40, 912,008.70 and 323,404.20

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Solution

The fourth proportional to 607,487.40, 912,008.70 and 323,404.20 is: 485,520.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,487.40 : 912,008.70 = 323,404.20 : x
  2. Step 2: Convert to fraction form
    607,487.40/912,008.70 = 323,404.20/x
  3. Step 3: Cross multiply
    607,487.40x = 912,008.70 × 323,404.20
  4. Step 4: Simplify right side
    607,487.40x = 294,947,444,016.54
  5. Step 5: Solve for x
    x = 294,947,444,016.54/607,487.40
  6. Step 6: Final answer
    x = 485,520.27

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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.