Home / 1,381,299.48-2,070,378.03-840,363.35

Finding the Fourth Proportional to 1,381,299.48, 2,070,378.03 and 840,363.35

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Solution

The fourth proportional to 1,381,299.48, 2,070,378.03 and 840,363.35 is: 1,259,589.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,299.48 : 2,070,378.03 = 840,363.35 : x
  2. Step 2: Convert to fraction form
    1,381,299.48/2,070,378.03 = 840,363.35/x
  3. Step 3: Cross multiply
    1,381,299.48x = 2,070,378.03 × 840,363.35
  4. Step 4: Simplify right side
    1,381,299.48x = 1,739,869,806,705.31
  5. Step 5: Solve for x
    x = 1,739,869,806,705.31/1,381,299.48
  6. Step 6: Final answer
    x = 1,259,589.13

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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.