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Finding the Fourth Proportional to 880,461.82, 1,215,042.15 and 478,053.82

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Solution

The fourth proportional to 880,461.82, 1,215,042.15 and 478,053.82 is: 659,716.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,461.82 : 1,215,042.15 = 478,053.82 : x
  2. Step 2: Convert to fraction form
    880,461.82/1,215,042.15 = 478,053.82/x
  3. Step 3: Cross multiply
    880,461.82x = 1,215,042.15 × 478,053.82
  4. Step 4: Simplify right side
    880,461.82x = 580,855,541,268.51
  5. Step 5: Solve for x
    x = 580,855,541,268.51/880,461.82
  6. Step 6: Final answer
    x = 659,716.90

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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.