Home / 390,961.04-586,487.72-124,628.18

Finding the Fourth Proportional to 390,961.04, 586,487.72 and 124,628.18

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Solution

The fourth proportional to 390,961.04, 586,487.72 and 124,628.18 is: 186,956.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,961.04 : 586,487.72 = 124,628.18 : x
  2. Step 2: Convert to fraction form
    390,961.04/586,487.72 = 124,628.18/x
  3. Step 3: Cross multiply
    390,961.04x = 586,487.72 × 124,628.18
  4. Step 4: Simplify right side
    390,961.04x = 73,092,897,135.95
  5. Step 5: Solve for x
    x = 73,092,897,135.95/390,961.04
  6. Step 6: Final answer
    x = 186,956.98

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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.