Home / 1,278,900.30-1,918,169.01-437,329.74

Finding the Fourth Proportional to 1,278,900.30, 1,918,169.01 and 437,329.74

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Solution

The fourth proportional to 1,278,900.30, 1,918,169.01 and 437,329.74 is: 655,932.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,900.30 : 1,918,169.01 = 437,329.74 : x
  2. Step 2: Convert to fraction form
    1,278,900.30/1,918,169.01 = 437,329.74/x
  3. Step 3: Cross multiply
    1,278,900.30x = 1,918,169.01 × 437,329.74
  4. Step 4: Simplify right side
    1,278,900.30x = 838,872,354,419.36
  5. Step 5: Solve for x
    x = 838,872,354,419.36/1,278,900.30
  6. Step 6: Final answer
    x = 655,932.57

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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.