Home / 730,534.36-1,008,138.78-408,244.46

Finding the Fourth Proportional to 730,534.36, 1,008,138.78 and 408,244.46

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Solution

The fourth proportional to 730,534.36, 1,008,138.78 and 408,244.46 is: 563,378.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,534.36 : 1,008,138.78 = 408,244.46 : x
  2. Step 2: Convert to fraction form
    730,534.36/1,008,138.78 = 408,244.46/x
  3. Step 3: Cross multiply
    730,534.36x = 1,008,138.78 × 408,244.46
  4. Step 4: Simplify right side
    730,534.36x = 411,567,071,846.16
  5. Step 5: Solve for x
    x = 411,567,071,846.16/730,534.36
  6. Step 6: Final answer
    x = 563,378.12

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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.