Home / 1,432,657.71-2,148,246.90-421,648.29

Finding the Fourth Proportional to 1,432,657.71, 2,148,246.90 and 421,648.29

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Solution

The fourth proportional to 1,432,657.71, 2,148,246.90 and 421,648.29 is: 632,254.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,657.71 : 2,148,246.90 = 421,648.29 : x
  2. Step 2: Convert to fraction form
    1,432,657.71/2,148,246.90 = 421,648.29/x
  3. Step 3: Cross multiply
    1,432,657.71x = 2,148,246.90 × 421,648.29
  4. Step 4: Simplify right side
    1,432,657.71x = 905,804,631,882.80
  5. Step 5: Solve for x
    x = 905,804,631,882.80/1,432,657.71
  6. Step 6: Final answer
    x = 632,254.74

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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.