Home / 389,607.04-584,432.79-109,146.16

Finding the Fourth Proportional to 389,607.04, 584,432.79 and 109,146.16

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Solution

The fourth proportional to 389,607.04, 584,432.79 and 109,146.16 is: 163,725.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,607.04 : 584,432.79 = 109,146.16 : x
  2. Step 2: Convert to fraction form
    389,607.04/584,432.79 = 109,146.16/x
  3. Step 3: Cross multiply
    389,607.04x = 584,432.79 × 109,146.16
  4. Step 4: Simplify right side
    389,607.04x = 63,788,594,806.59
  5. Step 5: Solve for x
    x = 63,788,594,806.59/389,607.04
  6. Step 6: Final answer
    x = 163,725.47

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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.