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Finding the Fourth Proportional to 539,118.70, 807,252.45 and 432,004.30

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Solution

The fourth proportional to 539,118.70, 807,252.45 and 432,004.30 is: 646,864.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,118.70 : 807,252.45 = 432,004.30 : x
  2. Step 2: Convert to fraction form
    539,118.70/807,252.45 = 432,004.30/x
  3. Step 3: Cross multiply
    539,118.70x = 807,252.45 × 432,004.30
  4. Step 4: Simplify right side
    539,118.70x = 348,736,529,585.54
  5. Step 5: Solve for x
    x = 348,736,529,585.54/539,118.70
  6. Step 6: Final answer
    x = 646,864.09

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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.