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Finding the Fourth Proportional to 880,469.10, 1,215,051.84 and 498,570.30

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Solution

The fourth proportional to 880,469.10, 1,215,051.84 and 498,570.30 is: 688,029.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,469.10 : 1,215,051.84 = 498,570.30 : x
  2. Step 2: Convert to fraction form
    880,469.10/1,215,051.84 = 498,570.30/x
  3. Step 3: Cross multiply
    880,469.10x = 1,215,051.84 × 498,570.30
  4. Step 4: Simplify right side
    880,469.10x = 605,788,760,384.35
  5. Step 5: Solve for x
    x = 605,788,760,384.35/880,469.10
  6. Step 6: Final answer
    x = 688,029.55

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1.5x scale

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.