Home / 1,667,633.68-2,501,803.80-642,990.16

Finding the Fourth Proportional to 1,667,633.68, 2,501,803.80 and 642,990.16

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Solution

The fourth proportional to 1,667,633.68, 2,501,803.80 and 642,990.16 is: 964,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,667,633.68 : 2,501,803.80 = 642,990.16 : x
  2. Step 2: Convert to fraction form
    1,667,633.68/2,501,803.80 = 642,990.16/x
  3. Step 3: Cross multiply
    1,667,633.68x = 2,501,803.80 × 642,990.16
  4. Step 4: Simplify right side
    1,667,633.68x = 1,608,635,225,650.61
  5. Step 5: Solve for x
    x = 1,608,635,225,650.61/1,667,633.68
  6. Step 6: Final answer
    x = 964,621.45

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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.