Home / 1,007,531.40-1,511,297.10-688,666.80

Finding the Fourth Proportional to 1,007,531.40, 1,511,297.10 and 688,666.80

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Solution

The fourth proportional to 1,007,531.40, 1,511,297.10 and 688,666.80 is: 1,033,000.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,531.40 : 1,511,297.10 = 688,666.80 : x
  2. Step 2: Convert to fraction form
    1,007,531.40/1,511,297.10 = 688,666.80/x
  3. Step 3: Cross multiply
    1,007,531.40x = 1,511,297.10 × 688,666.80
  4. Step 4: Simplify right side
    1,007,531.40x = 1,040,780,137,706.28
  5. Step 5: Solve for x
    x = 1,040,780,137,706.28/1,007,531.40
  6. Step 6: Final answer
    x = 1,033,000.20

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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.