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Finding the Fourth Proportional to 461,341.48, 636,695.76 and 280,011.64

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Solution

The fourth proportional to 461,341.48, 636,695.76 and 280,011.64 is: 386,443.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,341.48 : 636,695.76 = 280,011.64 : x
  2. Step 2: Convert to fraction form
    461,341.48/636,695.76 = 280,011.64/x
  3. Step 3: Cross multiply
    461,341.48x = 636,695.76 × 280,011.64
  4. Step 4: Simplify right side
    461,341.48x = 178,282,223,938.65
  5. Step 5: Solve for x
    x = 178,282,223,938.65/461,341.48
  6. Step 6: Final answer
    x = 386,443.08

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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.