Home / 1,039,988.89-1,558,838.40-680,011.30

Finding the Fourth Proportional to 1,039,988.89, 1,558,838.40 and 680,011.30

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Solution

The fourth proportional to 1,039,988.89, 1,558,838.40 and 680,011.30 is: 1,019,268.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,988.89 : 1,558,838.40 = 680,011.30 : x
  2. Step 2: Convert to fraction form
    1,039,988.89/1,558,838.40 = 680,011.30/x
  3. Step 3: Cross multiply
    1,039,988.89x = 1,558,838.40 × 680,011.30
  4. Step 4: Simplify right side
    1,039,988.89x = 1,060,027,726,873.92
  5. Step 5: Solve for x
    x = 1,060,027,726,873.92/1,039,988.89
  6. Step 6: Final answer
    x = 1,019,268.32

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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.