Home / 876,006.70-1,314,010.05-515,807.80

Finding the Fourth Proportional to 876,006.70, 1,314,010.05 and 515,807.80

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Solution

The fourth proportional to 876,006.70, 1,314,010.05 and 515,807.80 is: 773,711.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,006.70 : 1,314,010.05 = 515,807.80 : x
  2. Step 2: Convert to fraction form
    876,006.70/1,314,010.05 = 515,807.80/x
  3. Step 3: Cross multiply
    876,006.70x = 1,314,010.05 × 515,807.80
  4. Step 4: Simplify right side
    876,006.70x = 677,776,633,068.39
  5. Step 5: Solve for x
    x = 677,776,633,068.39/876,006.70
  6. Step 6: Final answer
    x = 773,711.70

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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.