Home / 693,381.20-1,040,071.80-607,672.40

Finding the Fourth Proportional to 693,381.20, 1,040,071.80 and 607,672.40

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Solution

The fourth proportional to 693,381.20, 1,040,071.80 and 607,672.40 is: 911,508.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,381.20 : 1,040,071.80 = 607,672.40 : x
  2. Step 2: Convert to fraction form
    693,381.20/1,040,071.80 = 607,672.40/x
  3. Step 3: Cross multiply
    693,381.20x = 1,040,071.80 × 607,672.40
  4. Step 4: Simplify right side
    693,381.20x = 632,022,926,878.32
  5. Step 5: Solve for x
    x = 632,022,926,878.32/693,381.20
  6. Step 6: Final answer
    x = 911,508.60

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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.