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Finding the Fourth Proportional to 908,853.60, 1,363,267.60 and 410,216.80

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Solution

The fourth proportional to 908,853.60, 1,363,267.60 and 410,216.80 is: 615,319.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,853.60 : 1,363,267.60 = 410,216.80 : x
  2. Step 2: Convert to fraction form
    908,853.60/1,363,267.60 = 410,216.80/x
  3. Step 3: Cross multiply
    908,853.60x = 1,363,267.60 × 410,216.80
  4. Step 4: Simplify right side
    908,853.60x = 559,235,272,415.68
  5. Step 5: Solve for x
    x = 559,235,272,415.68/908,853.60
  6. Step 6: Final answer
    x = 615,319.42

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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.