Home / 724,289.40-1,086,434.10-537,665.40

Finding the Fourth Proportional to 724,289.40, 1,086,434.10 and 537,665.40

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Solution

The fourth proportional to 724,289.40, 1,086,434.10 and 537,665.40 is: 806,498.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,289.40 : 1,086,434.10 = 537,665.40 : x
  2. Step 2: Convert to fraction form
    724,289.40/1,086,434.10 = 537,665.40/x
  3. Step 3: Cross multiply
    724,289.40x = 1,086,434.10 × 537,665.40
  4. Step 4: Simplify right side
    724,289.40x = 584,138,024,950.14
  5. Step 5: Solve for x
    x = 584,138,024,950.14/724,289.40
  6. Step 6: Final answer
    x = 806,498.10

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Double scale
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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.