Home / 729,155.18-1,006,445.37-423,300.26

Finding the Fourth Proportional to 729,155.18, 1,006,445.37 and 423,300.26

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Solution

The fourth proportional to 729,155.18, 1,006,445.37 and 423,300.26 is: 584,276.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,155.18 : 1,006,445.37 = 423,300.26 : x
  2. Step 2: Convert to fraction form
    729,155.18/1,006,445.37 = 423,300.26/x
  3. Step 3: Cross multiply
    729,155.18x = 1,006,445.37 × 423,300.26
  4. Step 4: Simplify right side
    729,155.18x = 426,028,586,796.80
  5. Step 5: Solve for x
    x = 426,028,586,796.80/729,155.18
  6. Step 6: Final answer
    x = 584,276.98

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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.