Home / 1,431,149.07-2,146,936.15-471,427.40

Finding the Fourth Proportional to 1,431,149.07, 2,146,936.15 and 471,427.40

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Solution

The fourth proportional to 1,431,149.07, 2,146,936.15 and 471,427.40 is: 707,211.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,149.07 : 2,146,936.15 = 471,427.40 : x
  2. Step 2: Convert to fraction form
    1,431,149.07/2,146,936.15 = 471,427.40/x
  3. Step 3: Cross multiply
    1,431,149.07x = 2,146,936.15 × 471,427.40
  4. Step 4: Simplify right side
    1,431,149.07x = 1,012,124,516,425.83
  5. Step 5: Solve for x
    x = 1,012,124,516,425.83/1,431,149.07
  6. Step 6: Final answer
    x = 707,211.11

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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.