Home / 787,320-1,181,154.96-288,684

Finding the Fourth Proportional to 787,320, 1,181,154.96 and 288,684

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Solution

The fourth proportional to 787,320, 1,181,154.96 and 288,684 is: 433,090.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,320 : 1,181,154.96 = 288,684 : x
  2. Step 2: Convert to fraction form
    787,320/1,181,154.96 = 288,684/x
  3. Step 3: Cross multiply
    787,320x = 1,181,154.96 × 288,684
  4. Step 4: Simplify right side
    787,320x = 340,980,538,472.64
  5. Step 5: Solve for x
    x = 340,980,538,472.64/787,320
  6. Step 6: Final answer
    x = 433,090.15

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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.