Home / 687,068.70-1,030,603.05-477,116.70

Finding the Fourth Proportional to 687,068.70, 1,030,603.05 and 477,116.70

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Solution

The fourth proportional to 687,068.70, 1,030,603.05 and 477,116.70 is: 715,675.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,068.70 : 1,030,603.05 = 477,116.70 : x
  2. Step 2: Convert to fraction form
    687,068.70/1,030,603.05 = 477,116.70/x
  3. Step 3: Cross multiply
    687,068.70x = 1,030,603.05 × 477,116.70
  4. Step 4: Simplify right side
    687,068.70x = 491,717,926,225.94
  5. Step 5: Solve for x
    x = 491,717,926,225.94/687,068.70
  6. Step 6: Final answer
    x = 715,675.05

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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.