Home / 686,013.38-1,029,371.08-326,590.46

Finding the Fourth Proportional to 686,013.38, 1,029,371.08 and 326,590.46

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Solution

The fourth proportional to 686,013.38, 1,029,371.08 and 326,590.46 is: 490,052.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,013.38 : 1,029,371.08 = 326,590.46 : x
  2. Step 2: Convert to fraction form
    686,013.38/1,029,371.08 = 326,590.46/x
  3. Step 3: Cross multiply
    686,013.38x = 1,029,371.08 × 326,590.46
  4. Step 4: Simplify right side
    686,013.38x = 336,182,774,527.90
  5. Step 5: Solve for x
    x = 336,182,774,527.90/686,013.38
  6. Step 6: Final answer
    x = 490,052.80

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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.