Home / 743,522.20-1,026,058.12-421,293.72

Finding the Fourth Proportional to 743,522.20, 1,026,058.12 and 421,293.72

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Solution

The fourth proportional to 743,522.20, 1,026,058.12 and 421,293.72 is: 581,383.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,522.20 : 1,026,058.12 = 421,293.72 : x
  2. Step 2: Convert to fraction form
    743,522.20/1,026,058.12 = 421,293.72/x
  3. Step 3: Cross multiply
    743,522.20x = 1,026,058.12 × 421,293.72
  4. Step 4: Simplify right side
    743,522.20x = 432,271,845,105.49
  5. Step 5: Solve for x
    x = 432,271,845,105.49/743,522.20
  6. Step 6: Final answer
    x = 581,383.91

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Double scale
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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.