Home / 766,672.94-1,058,054.89-422,507.95

Finding the Fourth Proportional to 766,672.94, 1,058,054.89 and 422,507.95

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Solution

The fourth proportional to 766,672.94, 1,058,054.89 and 422,507.95 is: 583,086.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,672.94 : 1,058,054.89 = 422,507.95 : x
  2. Step 2: Convert to fraction form
    766,672.94/1,058,054.89 = 422,507.95/x
  3. Step 3: Cross multiply
    766,672.94x = 1,058,054.89 × 422,507.95
  4. Step 4: Simplify right side
    766,672.94x = 447,036,602,561.38
  5. Step 5: Solve for x
    x = 447,036,602,561.38/766,672.94
  6. Step 6: Final answer
    x = 583,086.45

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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.