Home / 1,431,150.07-2,146,937.65-471,428.40

Finding the Fourth Proportional to 1,431,150.07, 2,146,937.65 and 471,428.40

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Solution

The fourth proportional to 1,431,150.07, 2,146,937.65 and 471,428.40 is: 707,212.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,150.07 : 2,146,937.65 = 471,428.40 : x
  2. Step 2: Convert to fraction form
    1,431,150.07/2,146,937.65 = 471,428.40/x
  3. Step 3: Cross multiply
    1,431,150.07x = 2,146,937.65 × 471,428.40
  4. Step 4: Simplify right side
    1,431,150.07x = 1,012,127,381,239.26
  5. Step 5: Solve for x
    x = 1,012,127,381,239.26/1,431,150.07
  6. Step 6: Final answer
    x = 707,212.61

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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.