Home / 743,632.20-1,026,399.06-421,534.49

Finding the Fourth Proportional to 743,632.20, 1,026,399.06 and 421,534.49

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Solution

The fourth proportional to 743,632.20, 1,026,399.06 and 421,534.49 is: 581,823.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,632.20 : 1,026,399.06 = 421,534.49 : x
  2. Step 2: Convert to fraction form
    743,632.20/1,026,399.06 = 421,534.49/x
  3. Step 3: Cross multiply
    743,632.20x = 1,026,399.06 × 421,534.49
  4. Step 4: Simplify right side
    743,632.20x = 432,662,599,161.58
  5. Step 5: Solve for x
    x = 432,662,599,161.58/743,632.20
  6. Step 6: Final answer
    x = 581,823.38

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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.