Home / 1,432,516.97-2,148,541.85-421,402.40

Finding the Fourth Proportional to 1,432,516.97, 2,148,541.85 and 421,402.40

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Solution

The fourth proportional to 1,432,516.97, 2,148,541.85 and 421,402.40 is: 632,034.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,516.97 : 2,148,541.85 = 421,402.40 : x
  2. Step 2: Convert to fraction form
    1,432,516.97/2,148,541.85 = 421,402.40/x
  3. Step 3: Cross multiply
    1,432,516.97x = 2,148,541.85 × 421,402.40
  4. Step 4: Simplify right side
    1,432,516.97x = 905,400,679,240.72
  5. Step 5: Solve for x
    x = 905,400,679,240.72/1,432,516.97
  6. Step 6: Final answer
    x = 632,034.87

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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.