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Finding the Fourth Proportional to 684,456.84, 944,752.68 and 442,749.60

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Solution

The fourth proportional to 684,456.84, 944,752.68 and 442,749.60 is: 611,125.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,456.84 : 944,752.68 = 442,749.60 : x
  2. Step 2: Convert to fraction form
    684,456.84/944,752.68 = 442,749.60/x
  3. Step 3: Cross multiply
    684,456.84x = 944,752.68 × 442,749.60
  4. Step 4: Simplify right side
    684,456.84x = 418,288,871,168.93
  5. Step 5: Solve for x
    x = 418,288,871,168.93/684,456.84
  6. Step 6: Final answer
    x = 611,125.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.