Home / 1,581,686.61-2,182,728.68-856,535.11

Finding the Fourth Proportional to 1,581,686.61, 2,182,728.68 and 856,535.11

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Solution

The fourth proportional to 1,581,686.61, 2,182,728.68 and 856,535.11 is: 1,182,019.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,686.61 : 2,182,728.68 = 856,535.11 : x
  2. Step 2: Convert to fraction form
    1,581,686.61/2,182,728.68 = 856,535.11/x
  3. Step 3: Cross multiply
    1,581,686.61x = 2,182,728.68 × 856,535.11
  4. Step 4: Simplify right side
    1,581,686.61x = 1,869,583,750,023.95
  5. Step 5: Solve for x
    x = 1,869,583,750,023.95/1,581,686.61
  6. Step 6: Final answer
    x = 1,182,019.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.