Home / 747,360.06-1,031,378.67-407,850.18

Finding the Fourth Proportional to 747,360.06, 1,031,378.67 and 407,850.18

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Solution

The fourth proportional to 747,360.06, 1,031,378.67 and 407,850.18 is: 562,845.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,360.06 : 1,031,378.67 = 407,850.18 : x
  2. Step 2: Convert to fraction form
    747,360.06/1,031,378.67 = 407,850.18/x
  3. Step 3: Cross multiply
    747,360.06x = 1,031,378.67 × 407,850.18
  4. Step 4: Simplify right side
    747,360.06x = 420,647,976,207.66
  5. Step 5: Solve for x
    x = 420,647,976,207.66/747,360.06
  6. Step 6: Final answer
    x = 562,845.14

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Double scale
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Similar ratio
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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.