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Finding the Fourth Proportional to 885,053, 1,221,465.30 and 545,512.52

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Solution

The fourth proportional to 885,053, 1,221,465.30 and 545,512.52 is: 752,864.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,053 : 1,221,465.30 = 545,512.52 : x
  2. Step 2: Convert to fraction form
    885,053/1,221,465.30 = 545,512.52/x
  3. Step 3: Cross multiply
    885,053x = 1,221,465.30 × 545,512.52
  4. Step 4: Simplify right side
    885,053x = 666,324,613,895.56
  5. Step 5: Solve for x
    x = 666,324,613,895.56/885,053
  6. Step 6: Final answer
    x = 752,864.08

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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.