Home / 766,747.54-1,058,068.43-422,582.40

Finding the Fourth Proportional to 766,747.54, 1,058,068.43 and 422,582.40

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Solution

The fourth proportional to 766,747.54, 1,058,068.43 and 422,582.40 is: 583,139.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,747.54 : 1,058,068.43 = 422,582.40 : x
  2. Step 2: Convert to fraction form
    766,747.54/1,058,068.43 = 422,582.40/x
  3. Step 3: Cross multiply
    766,747.54x = 1,058,068.43 × 422,582.40
  4. Step 4: Simplify right side
    766,747.54x = 447,121,096,513.63
  5. Step 5: Solve for x
    x = 447,121,096,513.63/766,747.54
  6. Step 6: Final answer
    x = 583,139.92

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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.