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Finding the Fourth Proportional to 660,876.01, 912,053.97 and 374,398.45

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Solution

The fourth proportional to 660,876.01, 912,053.97 and 374,398.45 is: 516,695.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,876.01 : 912,053.97 = 374,398.45 : x
  2. Step 2: Convert to fraction form
    660,876.01/912,053.97 = 374,398.45/x
  3. Step 3: Cross multiply
    660,876.01x = 912,053.97 × 374,398.45
  4. Step 4: Simplify right side
    660,876.01x = 341,471,590,404.21
  5. Step 5: Solve for x
    x = 341,471,590,404.21/660,876.01
  6. Step 6: Final answer
    x = 516,695.40

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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.