Home / 925,333.80-1,388,000.70-715,122.60

Finding the Fourth Proportional to 925,333.80, 1,388,000.70 and 715,122.60

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Solution

The fourth proportional to 925,333.80, 1,388,000.70 and 715,122.60 is: 1,072,683.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,333.80 : 1,388,000.70 = 715,122.60 : x
  2. Step 2: Convert to fraction form
    925,333.80/1,388,000.70 = 715,122.60/x
  3. Step 3: Cross multiply
    925,333.80x = 1,388,000.70 × 715,122.60
  4. Step 4: Simplify right side
    925,333.80x = 992,590,669,385.82
  5. Step 5: Solve for x
    x = 992,590,669,385.82/925,333.80
  6. Step 6: Final answer
    x = 1,072,683.90

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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.