Home / 712,050.46-982,591.88-389,698.20

Finding the Fourth Proportional to 712,050.46, 982,591.88 and 389,698.20

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Solution

The fourth proportional to 712,050.46, 982,591.88 and 389,698.20 is: 537,762.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,050.46 : 982,591.88 = 389,698.20 : x
  2. Step 2: Convert to fraction form
    712,050.46/982,591.88 = 389,698.20/x
  3. Step 3: Cross multiply
    712,050.46x = 982,591.88 × 389,698.20
  4. Step 4: Simplify right side
    712,050.46x = 382,914,286,970.62
  5. Step 5: Solve for x
    x = 382,914,286,970.62/712,050.46
  6. Step 6: Final answer
    x = 537,762.85

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Double scale
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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.