Home / 865,726.60-1,296,257.10-679,102.60

Finding the Fourth Proportional to 865,726.60, 1,296,257.10 and 679,102.60

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Solution

The fourth proportional to 865,726.60, 1,296,257.10 and 679,102.60 is: 1,016,823.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,726.60 : 1,296,257.10 = 679,102.60 : x
  2. Step 2: Convert to fraction form
    865,726.60/1,296,257.10 = 679,102.60/x
  3. Step 3: Cross multiply
    865,726.60x = 1,296,257.10 × 679,102.60
  4. Step 4: Simplify right side
    865,726.60x = 880,291,566,878.46
  5. Step 5: Solve for x
    x = 880,291,566,878.46/865,726.60
  6. Step 6: Final answer
    x = 1,016,823.98

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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.