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Finding the Fourth Proportional to 576,428.60, 865,170.26 and 292,315.24

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Solution

The fourth proportional to 576,428.60, 865,170.26 and 292,315.24 is: 438,740.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,428.60 : 865,170.26 = 292,315.24 : x
  2. Step 2: Convert to fraction form
    576,428.60/865,170.26 = 292,315.24/x
  3. Step 3: Cross multiply
    576,428.60x = 865,170.26 × 292,315.24
  4. Step 4: Simplify right side
    576,428.60x = 252,902,452,192.76
  5. Step 5: Solve for x
    x = 252,902,452,192.76/576,428.60
  6. Step 6: Final answer
    x = 438,740.29

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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.