Home / 876,645.20-1,314,967.80-498,731.60

Finding the Fourth Proportional to 876,645.20, 1,314,967.80 and 498,731.60

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Solution

The fourth proportional to 876,645.20, 1,314,967.80 and 498,731.60 is: 748,097.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,645.20 : 1,314,967.80 = 498,731.60 : x
  2. Step 2: Convert to fraction form
    876,645.20/1,314,967.80 = 498,731.60/x
  3. Step 3: Cross multiply
    876,645.20x = 1,314,967.80 × 498,731.60
  4. Step 4: Simplify right side
    876,645.20x = 655,815,994,842.48
  5. Step 5: Solve for x
    x = 655,815,994,842.48/876,645.20
  6. Step 6: Final answer
    x = 748,097.40

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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.