Home / 1,272,559.55-1,908,740.10-739,740.74

Finding the Fourth Proportional to 1,272,559.55, 1,908,740.10 and 739,740.74

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Solution

The fourth proportional to 1,272,559.55, 1,908,740.10 and 739,740.74 is: 1,109,553.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,559.55 : 1,908,740.10 = 739,740.74 : x
  2. Step 2: Convert to fraction form
    1,272,559.55/1,908,740.10 = 739,740.74/x
  3. Step 3: Cross multiply
    1,272,559.55x = 1,908,740.10 × 739,740.74
  4. Step 4: Simplify right side
    1,272,559.55x = 1,411,972,814,041.67
  5. Step 5: Solve for x
    x = 1,411,972,814,041.67/1,272,559.55
  6. Step 6: Final answer
    x = 1,109,553.43

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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.