Home / 766,705.56-1,058,060.88-422,554.02

Finding the Fourth Proportional to 766,705.56, 1,058,060.88 and 422,554.02

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Solution

The fourth proportional to 766,705.56, 1,058,060.88 and 422,554.02 is: 583,128.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,705.56 : 1,058,060.88 = 422,554.02 : x
  2. Step 2: Convert to fraction form
    766,705.56/1,058,060.88 = 422,554.02/x
  3. Step 3: Cross multiply
    766,705.56x = 1,058,060.88 × 422,554.02
  4. Step 4: Simplify right side
    766,705.56x = 447,087,878,248.74
  5. Step 5: Solve for x
    x = 447,087,878,248.74/766,705.56
  6. Step 6: Final answer
    x = 583,128.52

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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.