Home / 429,837.27-644,587.00-145,449.51

Finding the Fourth Proportional to 429,837.27, 644,587.00 and 145,449.51

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Solution

The fourth proportional to 429,837.27, 644,587.00 and 145,449.51 is: 218,117.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,837.27 : 644,587.00 = 145,449.51 : x
  2. Step 2: Convert to fraction form
    429,837.27/644,587.00 = 145,449.51/x
  3. Step 3: Cross multiply
    429,837.27x = 644,587.00 × 145,449.51
  4. Step 4: Simplify right side
    429,837.27x = 93,754,860,521.55
  5. Step 5: Solve for x
    x = 93,754,860,521.55/429,837.27
  6. Step 6: Final answer
    x = 218,117.11

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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.