Home / 766,821.05-1,058,291.78-460,996.43

Finding the Fourth Proportional to 766,821.05, 1,058,291.78 and 460,996.43

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Solution

The fourth proportional to 766,821.05, 1,058,291.78 and 460,996.43 is: 636,222.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,821.05 : 1,058,291.78 = 460,996.43 : x
  2. Step 2: Convert to fraction form
    766,821.05/1,058,291.78 = 460,996.43/x
  3. Step 3: Cross multiply
    766,821.05x = 1,058,291.78 × 460,996.43
  4. Step 4: Simplify right side
    766,821.05x = 487,868,724,881.90
  5. Step 5: Solve for x
    x = 487,868,724,881.90/766,821.05
  6. Step 6: Final answer
    x = 636,222.40

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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.