Home / 729,689.88-1,007,313.33-423,706.66

Finding the Fourth Proportional to 729,689.88, 1,007,313.33 and 423,706.66

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Solution

The fourth proportional to 729,689.88, 1,007,313.33 and 423,706.66 is: 584,913.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,689.88 : 1,007,313.33 = 423,706.66 : x
  2. Step 2: Convert to fraction form
    729,689.88/1,007,313.33 = 423,706.66/x
  3. Step 3: Cross multiply
    729,689.88x = 1,007,313.33 × 423,706.66
  4. Step 4: Simplify right side
    729,689.88x = 426,805,366,627.78
  5. Step 5: Solve for x
    x = 426,805,366,627.78/729,689.88
  6. Step 6: Final answer
    x = 584,913.37

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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.