Home / 878,017.68-1,317,210.12-499,112.64

Finding the Fourth Proportional to 878,017.68, 1,317,210.12 and 499,112.64

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Solution

The fourth proportional to 878,017.68, 1,317,210.12 and 499,112.64 is: 748,773.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,017.68 : 1,317,210.12 = 499,112.64 : x
  2. Step 2: Convert to fraction form
    878,017.68/1,317,210.12 = 499,112.64/x
  3. Step 3: Cross multiply
    878,017.68x = 1,317,210.12 × 499,112.64
  4. Step 4: Simplify right side
    878,017.68x = 657,436,220,427.92
  5. Step 5: Solve for x
    x = 657,436,220,427.92/878,017.68
  6. Step 6: Final answer
    x = 748,773.33

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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.