Home / 1,381,062.42-2,071,902.70-421,603.30

Finding the Fourth Proportional to 1,381,062.42, 2,071,902.70 and 421,603.30

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Solution

The fourth proportional to 1,381,062.42, 2,071,902.70 and 421,603.30 is: 632,499.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,062.42 : 2,071,902.70 = 421,603.30 : x
  2. Step 2: Convert to fraction form
    1,381,062.42/2,071,902.70 = 421,603.30/x
  3. Step 3: Cross multiply
    1,381,062.42x = 2,071,902.70 × 421,603.30
  4. Step 4: Simplify right side
    1,381,062.42x = 873,521,004,689.82
  5. Step 5: Solve for x
    x = 873,521,004,689.82/1,381,062.42
  6. Step 6: Final answer
    x = 632,499.29

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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.