Home / 766,958.61-1,058,406.21-422,787.15

Finding the Fourth Proportional to 766,958.61, 1,058,406.21 and 422,787.15

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Solution

The fourth proportional to 766,958.61, 1,058,406.21 and 422,787.15 is: 583,448.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,958.61 : 1,058,406.21 = 422,787.15 : x
  2. Step 2: Convert to fraction form
    766,958.61/1,058,406.21 = 422,787.15/x
  3. Step 3: Cross multiply
    766,958.61x = 1,058,406.21 × 422,787.15
  4. Step 4: Simplify right side
    766,958.61x = 447,480,545,068.20
  5. Step 5: Solve for x
    x = 447,480,545,068.20/766,958.61
  6. Step 6: Final answer
    x = 583,448.10

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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.