Home / 666,359.23-999,538.02-217,079.35

Finding the Fourth Proportional to 666,359.23, 999,538.02 and 217,079.35

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Solution

The fourth proportional to 666,359.23, 999,538.02 and 217,079.35 is: 325,618.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,359.23 : 999,538.02 = 217,079.35 : x
  2. Step 2: Convert to fraction form
    666,359.23/999,538.02 = 217,079.35/x
  3. Step 3: Cross multiply
    666,359.23x = 999,538.02 × 217,079.35
  4. Step 4: Simplify right side
    666,359.23x = 216,979,063,681.89
  5. Step 5: Solve for x
    x = 216,979,063,681.89/666,359.23
  6. Step 6: Final answer
    x = 325,618.76

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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.