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Finding the Fourth Proportional to 566,721.60, 782,078.08 and 340,370.88

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Solution

The fourth proportional to 566,721.60, 782,078.08 and 340,370.88 is: 469,713.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,721.60 : 782,078.08 = 340,370.88 : x
  2. Step 2: Convert to fraction form
    566,721.60/782,078.08 = 340,370.88/x
  3. Step 3: Cross multiply
    566,721.60x = 782,078.08 × 340,370.88
  4. Step 4: Simplify right side
    566,721.60x = 266,196,604,318.31
  5. Step 5: Solve for x
    x = 266,196,604,318.31/566,721.60
  6. Step 6: Final answer
    x = 469,713.18

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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.