Home / 729,107.10-1,006,258.68-423,117.78

Finding the Fourth Proportional to 729,107.10, 1,006,258.68 and 423,117.78

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Solution

The fourth proportional to 729,107.10, 1,006,258.68 and 423,117.78 is: 583,955.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,107.10 : 1,006,258.68 = 423,117.78 : x
  2. Step 2: Convert to fraction form
    729,107.10/1,006,258.68 = 423,117.78/x
  3. Step 3: Cross multiply
    729,107.10x = 1,006,258.68 × 423,117.78
  4. Step 4: Simplify right side
    729,107.10x = 425,765,938,787.33
  5. Step 5: Solve for x
    x = 425,765,938,787.33/729,107.10
  6. Step 6: Final answer
    x = 583,955.28

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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.