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Finding the Fourth Proportional to 440,890, 608,432.52 and 239,690.32

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Solution

The fourth proportional to 440,890, 608,432.52 and 239,690.32 is: 330,774.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,890 : 608,432.52 = 239,690.32 : x
  2. Step 2: Convert to fraction form
    440,890/608,432.52 = 239,690.32/x
  3. Step 3: Cross multiply
    440,890x = 608,432.52 × 239,690.32
  4. Step 4: Simplify right side
    440,890x = 145,835,385,417.21
  5. Step 5: Solve for x
    x = 145,835,385,417.21/440,890
  6. Step 6: Final answer
    x = 330,774.99

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1.5x scale

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.