Home / 740,265.30-1,021,626.45-418,053.78

Finding the Fourth Proportional to 740,265.30, 1,021,626.45 and 418,053.78

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Solution

The fourth proportional to 740,265.30, 1,021,626.45 and 418,053.78 is: 576,948.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,265.30 : 1,021,626.45 = 418,053.78 : x
  2. Step 2: Convert to fraction form
    740,265.30/1,021,626.45 = 418,053.78/x
  3. Step 3: Cross multiply
    740,265.30x = 1,021,626.45 × 418,053.78
  4. Step 4: Simplify right side
    740,265.30x = 427,094,799,170.48
  5. Step 5: Solve for x
    x = 427,094,799,170.48/740,265.30
  6. Step 6: Final answer
    x = 576,948.29

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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.