Home / 729,148.43-1,006,436.04-423,293.51

Finding the Fourth Proportional to 729,148.43, 1,006,436.04 and 423,293.51

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Solution

The fourth proportional to 729,148.43, 1,006,436.04 and 423,293.51 is: 584,267.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,148.43 : 1,006,436.04 = 423,293.51 : x
  2. Step 2: Convert to fraction form
    729,148.43/1,006,436.04 = 423,293.51/x
  3. Step 3: Cross multiply
    729,148.43x = 1,006,436.04 × 423,293.51
  4. Step 4: Simplify right side
    729,148.43x = 426,017,843,962.10
  5. Step 5: Solve for x
    x = 426,017,843,962.10/729,148.43
  6. Step 6: Final answer
    x = 584,267.66

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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.