Home / 1,238,870.88-1,859,446.80-766,478.88

Finding the Fourth Proportional to 1,238,870.88, 1,859,446.80 and 766,478.88

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Solution

The fourth proportional to 1,238,870.88, 1,859,446.80 and 766,478.88 is: 1,150,423.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,870.88 : 1,859,446.80 = 766,478.88 : x
  2. Step 2: Convert to fraction form
    1,238,870.88/1,859,446.80 = 766,478.88/x
  3. Step 3: Cross multiply
    1,238,870.88x = 1,859,446.80 × 766,478.88
  4. Step 4: Simplify right side
    1,238,870.88x = 1,425,226,700,683.58
  5. Step 5: Solve for x
    x = 1,425,226,700,683.58/1,238,870.88
  6. Step 6: Final answer
    x = 1,150,423.93

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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.