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Finding the Fourth Proportional to 660,953.82, 912,122.04 and 359,147.82

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Solution

The fourth proportional to 660,953.82, 912,122.04 and 359,147.82 is: 495,627.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,953.82 : 912,122.04 = 359,147.82 : x
  2. Step 2: Convert to fraction form
    660,953.82/912,122.04 = 359,147.82/x
  3. Step 3: Cross multiply
    660,953.82x = 912,122.04 × 359,147.82
  4. Step 4: Simplify right side
    660,953.82x = 327,586,642,239.95
  5. Step 5: Solve for x
    x = 327,586,642,239.95/660,953.82
  6. Step 6: Final answer
    x = 495,627.13

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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.