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Finding the Fourth Proportional to 434,704.80, 651,182.40 and 292,987.20

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Solution

The fourth proportional to 434,704.80, 651,182.40 and 292,987.20 is: 438,891.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,704.80 : 651,182.40 = 292,987.20 : x
  2. Step 2: Convert to fraction form
    434,704.80/651,182.40 = 292,987.20/x
  3. Step 3: Cross multiply
    434,704.80x = 651,182.40 × 292,987.20
  4. Step 4: Simplify right side
    434,704.80x = 190,788,108,065.28
  5. Step 5: Solve for x
    x = 190,788,108,065.28/434,704.80
  6. Step 6: Final answer
    x = 438,891.19

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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.