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Finding the Fourth Proportional to 612,044.40, 917,434.80 and 275,246.40

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Solution

The fourth proportional to 612,044.40, 917,434.80 and 275,246.40 is: 412,585.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,044.40 : 917,434.80 = 275,246.40 : x
  2. Step 2: Convert to fraction form
    612,044.40/917,434.80 = 275,246.40/x
  3. Step 3: Cross multiply
    612,044.40x = 917,434.80 × 275,246.40
  4. Step 4: Simplify right side
    612,044.40x = 252,520,625,934.72
  5. Step 5: Solve for x
    x = 252,520,625,934.72/612,044.40
  6. Step 6: Final answer
    x = 412,585.47

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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.