Home / 869,807.55-1,304,187.02-389,948.50

Finding the Fourth Proportional to 869,807.55, 1,304,187.02 and 389,948.50

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Solution

The fourth proportional to 869,807.55, 1,304,187.02 and 389,948.50 is: 584,687.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,807.55 : 1,304,187.02 = 389,948.50 : x
  2. Step 2: Convert to fraction form
    869,807.55/1,304,187.02 = 389,948.50/x
  3. Step 3: Cross multiply
    869,807.55x = 1,304,187.02 × 389,948.50
  4. Step 4: Simplify right side
    869,807.55x = 508,565,772,168.47
  5. Step 5: Solve for x
    x = 508,565,772,168.47/869,807.55
  6. Step 6: Final answer
    x = 584,687.70

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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.