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Finding the Fourth Proportional to 587,612.40, 882,340.20 and 338,780.40

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Solution

The fourth proportional to 587,612.40, 882,340.20 and 338,780.40 is: 508,701.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,612.40 : 882,340.20 = 338,780.40 : x
  2. Step 2: Convert to fraction form
    587,612.40/882,340.20 = 338,780.40/x
  3. Step 3: Cross multiply
    587,612.40x = 882,340.20 × 338,780.40
  4. Step 4: Simplify right side
    587,612.40x = 298,919,565,892.08
  5. Step 5: Solve for x
    x = 298,919,565,892.08/587,612.40
  6. Step 6: Final answer
    x = 508,701.94

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1.5x scale

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.