Home / 1,246,277.80-1,865,115.90-747,999.40

Finding the Fourth Proportional to 1,246,277.80, 1,865,115.90 and 747,999.40

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Solution

The fourth proportional to 1,246,277.80, 1,865,115.90 and 747,999.40 is: 1,119,417.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,277.80 : 1,865,115.90 = 747,999.40 : x
  2. Step 2: Convert to fraction form
    1,246,277.80/1,865,115.90 = 747,999.40/x
  3. Step 3: Cross multiply
    1,246,277.80x = 1,865,115.90 × 747,999.40
  4. Step 4: Simplify right side
    1,246,277.80x = 1,395,105,574,130.46
  5. Step 5: Solve for x
    x = 1,395,105,574,130.46/1,246,277.80
  6. Step 6: Final answer
    x = 1,119,417.82

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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.