Home / 1,234,637.70-1,851,956.55-728,679.30

Finding the Fourth Proportional to 1,234,637.70, 1,851,956.55 and 728,679.30

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Solution

The fourth proportional to 1,234,637.70, 1,851,956.55 and 728,679.30 is: 1,093,018.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234,637.70 : 1,851,956.55 = 728,679.30 : x
  2. Step 2: Convert to fraction form
    1,234,637.70/1,851,956.55 = 728,679.30/x
  3. Step 3: Cross multiply
    1,234,637.70x = 1,851,956.55 × 728,679.30
  4. Step 4: Simplify right side
    1,234,637.70x = 1,349,482,402,484.42
  5. Step 5: Solve for x
    x = 1,349,482,402,484.42/1,234,637.70
  6. Step 6: Final answer
    x = 1,093,018.95

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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.