Home / 876,715.20-1,315,072.80-502,430.40

Finding the Fourth Proportional to 876,715.20, 1,315,072.80 and 502,430.40

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Solution

The fourth proportional to 876,715.20, 1,315,072.80 and 502,430.40 is: 753,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,715.20 : 1,315,072.80 = 502,430.40 : x
  2. Step 2: Convert to fraction form
    876,715.20/1,315,072.80 = 502,430.40/x
  3. Step 3: Cross multiply
    876,715.20x = 1,315,072.80 × 502,430.40
  4. Step 4: Simplify right side
    876,715.20x = 660,732,552,933.12
  5. Step 5: Solve for x
    x = 660,732,552,933.12/876,715.20
  6. Step 6: Final answer
    x = 753,645.60

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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.