Home / 743,684.88-1,026,282.12-421,456.32

Finding the Fourth Proportional to 743,684.88, 1,026,282.12 and 421,456.32

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Solution

The fourth proportional to 743,684.88, 1,026,282.12 and 421,456.32 is: 581,608.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,684.88 : 1,026,282.12 = 421,456.32 : x
  2. Step 2: Convert to fraction form
    743,684.88/1,026,282.12 = 421,456.32/x
  3. Step 3: Cross multiply
    743,684.88x = 1,026,282.12 × 421,456.32
  4. Step 4: Simplify right side
    743,684.88x = 432,533,085,577.00
  5. Step 5: Solve for x
    x = 432,533,085,577.00/743,684.88
  6. Step 6: Final answer
    x = 581,608.01

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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.