Home / 423,108.84-583,976.15-287,186.59

Finding the Fourth Proportional to 423,108.84, 583,976.15 and 287,186.59

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Solution

The fourth proportional to 423,108.84, 583,976.15 and 287,186.59 is: 396,375.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,108.84 : 583,976.15 = 287,186.59 : x
  2. Step 2: Convert to fraction form
    423,108.84/583,976.15 = 287,186.59/x
  3. Step 3: Cross multiply
    423,108.84x = 583,976.15 × 287,186.59
  4. Step 4: Simplify right side
    423,108.84x = 167,710,119,159.83
  5. Step 5: Solve for x
    x = 167,710,119,159.83/423,108.84
  6. Step 6: Final answer
    x = 396,375.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.