Home / 1,371,431.12-2,057,281.88-472,754.55

Finding the Fourth Proportional to 1,371,431.12, 2,057,281.88 and 472,754.55

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Solution

The fourth proportional to 1,371,431.12, 2,057,281.88 and 472,754.55 is: 709,178.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371,431.12 : 2,057,281.88 = 472,754.55 : x
  2. Step 2: Convert to fraction form
    1,371,431.12/2,057,281.88 = 472,754.55/x
  3. Step 3: Cross multiply
    1,371,431.12x = 2,057,281.88 × 472,754.55
  4. Step 4: Simplify right side
    1,371,431.12x = 972,589,367,038.78
  5. Step 5: Solve for x
    x = 972,589,367,038.78/1,371,431.12
  6. Step 6: Final answer
    x = 709,178.43

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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.