Home / 691,406.80-1,037,110.20-452,258.35

Finding the Fourth Proportional to 691,406.80, 1,037,110.20 and 452,258.35

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Solution

The fourth proportional to 691,406.80, 1,037,110.20 and 452,258.35 is: 678,387.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,406.80 : 1,037,110.20 = 452,258.35 : x
  2. Step 2: Convert to fraction form
    691,406.80/1,037,110.20 = 452,258.35/x
  3. Step 3: Cross multiply
    691,406.80x = 1,037,110.20 × 452,258.35
  4. Step 4: Simplify right side
    691,406.80x = 469,041,747,820.17
  5. Step 5: Solve for x
    x = 469,041,747,820.17/691,406.80
  6. Step 6: Final answer
    x = 678,387.53

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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.