Home / 743,535.30-1,026,081.27-421,305.06

Finding the Fourth Proportional to 743,535.30, 1,026,081.27 and 421,305.06

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Solution

The fourth proportional to 743,535.30, 1,026,081.27 and 421,305.06 is: 581,402.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,535.30 : 1,026,081.27 = 421,305.06 : x
  2. Step 2: Convert to fraction form
    743,535.30/1,026,081.27 = 421,305.06/x
  3. Step 3: Cross multiply
    743,535.30x = 1,026,081.27 × 421,305.06
  4. Step 4: Simplify right side
    743,535.30x = 432,293,231,022.23
  5. Step 5: Solve for x
    x = 432,293,231,022.23/743,535.30
  6. Step 6: Final answer
    x = 581,402.43

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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.