Home / 766,915.93-1,058,335.37-418,048.69

Finding the Fourth Proportional to 766,915.93, 1,058,335.37 and 418,048.69

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Solution

The fourth proportional to 766,915.93, 1,058,335.37 and 418,048.69 is: 576,902.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,915.93 : 1,058,335.37 = 418,048.69 : x
  2. Step 2: Convert to fraction form
    766,915.93/1,058,335.37 = 418,048.69/x
  3. Step 3: Cross multiply
    766,915.93x = 1,058,335.37 × 418,048.69
  4. Step 4: Simplify right side
    766,915.93x = 442,435,710,273.08
  5. Step 5: Solve for x
    x = 442,435,710,273.08/766,915.93
  6. Step 6: Final answer
    x = 576,902.49

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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.