Home / 1,680,972.60-2,519,709.30-921,646.20

Finding the Fourth Proportional to 1,680,972.60, 2,519,709.30 and 921,646.20

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Solution

The fourth proportional to 1,680,972.60, 2,519,709.30 and 921,646.20 is: 1,381,510.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,972.60 : 2,519,709.30 = 921,646.20 : x
  2. Step 2: Convert to fraction form
    1,680,972.60/2,519,709.30 = 921,646.20/x
  3. Step 3: Cross multiply
    1,680,972.60x = 2,519,709.30 × 921,646.20
  4. Step 4: Simplify right side
    1,680,972.60x = 2,322,280,501,449.66
  5. Step 5: Solve for x
    x = 2,322,280,501,449.66/1,680,972.60
  6. Step 6: Final answer
    x = 1,381,510.03

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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.