Home / 758,876.80-1,138,679.70-506,278.30

Finding the Fourth Proportional to 758,876.80, 1,138,679.70 and 506,278.30

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Solution

The fourth proportional to 758,876.80, 1,138,679.70 and 506,278.30 is: 759,660.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,876.80 : 1,138,679.70 = 506,278.30 : x
  2. Step 2: Convert to fraction form
    758,876.80/1,138,679.70 = 506,278.30/x
  3. Step 3: Cross multiply
    758,876.80x = 1,138,679.70 × 506,278.30
  4. Step 4: Simplify right side
    758,876.80x = 576,488,822,760.51
  5. Step 5: Solve for x
    x = 576,488,822,760.51/758,876.80
  6. Step 6: Final answer
    x = 759,660.62

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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.