Home / 729,158.74-1,006,088.84-419,001.42

Finding the Fourth Proportional to 729,158.74, 1,006,088.84 and 419,001.42

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Solution

The fourth proportional to 729,158.74, 1,006,088.84 and 419,001.42 is: 578,135.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,158.74 : 1,006,088.84 = 419,001.42 : x
  2. Step 2: Convert to fraction form
    729,158.74/1,006,088.84 = 419,001.42/x
  3. Step 3: Cross multiply
    729,158.74x = 1,006,088.84 × 419,001.42
  4. Step 4: Simplify right side
    729,158.74x = 421,552,658,212.12
  5. Step 5: Solve for x
    x = 421,552,658,212.12/729,158.74
  6. Step 6: Final answer
    x = 578,135.64

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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.