Home / 717,002.10-989,491.14-394,742.16

Finding the Fourth Proportional to 717,002.10, 989,491.14 and 394,742.16

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Solution

The fourth proportional to 717,002.10, 989,491.14 and 394,742.16 is: 544,759.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,002.10 : 989,491.14 = 394,742.16 : x
  2. Step 2: Convert to fraction form
    717,002.10/989,491.14 = 394,742.16/x
  3. Step 3: Cross multiply
    717,002.10x = 989,491.14 × 394,742.16
  4. Step 4: Simplify right side
    717,002.10x = 390,593,869,904.46
  5. Step 5: Solve for x
    x = 390,593,869,904.46/717,002.10
  6. Step 6: Final answer
    x = 544,759.73

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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.