Home / 931,279.48-1,285,272.25-517,857.53

Finding the Fourth Proportional to 931,279.48, 1,285,272.25 and 517,857.53

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Solution

The fourth proportional to 931,279.48, 1,285,272.25 and 517,857.53 is: 714,702.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,279.48 : 1,285,272.25 = 517,857.53 : x
  2. Step 2: Convert to fraction form
    931,279.48/1,285,272.25 = 517,857.53/x
  3. Step 3: Cross multiply
    931,279.48x = 1,285,272.25 × 517,857.53
  4. Step 4: Simplify right side
    931,279.48x = 665,587,915,975.72
  5. Step 5: Solve for x
    x = 665,587,915,975.72/931,279.48
  6. Step 6: Final answer
    x = 714,702.66

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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.