Home / 498,750.30-688,279.77-283,904.16

Finding the Fourth Proportional to 498,750.30, 688,279.77 and 283,904.16

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Solution

The fourth proportional to 498,750.30, 688,279.77 and 283,904.16 is: 391,790.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,750.30 : 688,279.77 = 283,904.16 : x
  2. Step 2: Convert to fraction form
    498,750.30/688,279.77 = 283,904.16/x
  3. Step 3: Cross multiply
    498,750.30x = 688,279.77 × 283,904.16
  4. Step 4: Simplify right side
    498,750.30x = 195,405,489,946.84
  5. Step 5: Solve for x
    x = 195,405,489,946.84/498,750.30
  6. Step 6: Final answer
    x = 391,790.22

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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.