Home / 882,638.64-1,217,979.72-500,726.88

Finding the Fourth Proportional to 882,638.64, 1,217,979.72 and 500,726.88

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Solution

The fourth proportional to 882,638.64, 1,217,979.72 and 500,726.88 is: 690,968.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,638.64 : 1,217,979.72 = 500,726.88 : x
  2. Step 2: Convert to fraction form
    882,638.64/1,217,979.72 = 500,726.88/x
  3. Step 3: Cross multiply
    882,638.64x = 1,217,979.72 × 500,726.88
  4. Step 4: Simplify right side
    882,638.64x = 609,875,185,098.87
  5. Step 5: Solve for x
    x = 609,875,185,098.87/882,638.64
  6. Step 6: Final answer
    x = 690,968.15

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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.