Home / 724,520.84-1,085,249.10-458,143.88

Finding the Fourth Proportional to 724,520.84, 1,085,249.10 and 458,143.88

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Solution

The fourth proportional to 724,520.84, 1,085,249.10 and 458,143.88 is: 686,246.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,520.84 : 1,085,249.10 = 458,143.88 : x
  2. Step 2: Convert to fraction form
    724,520.84/1,085,249.10 = 458,143.88/x
  3. Step 3: Cross multiply
    724,520.84x = 1,085,249.10 × 458,143.88
  4. Step 4: Simplify right side
    724,520.84x = 497,200,233,440.51
  5. Step 5: Solve for x
    x = 497,200,233,440.51/724,520.84
  6. Step 6: Final answer
    x = 686,246.97

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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.