Home / 730,809.60-1,008,522.72-408,532.80

Finding the Fourth Proportional to 730,809.60, 1,008,522.72 and 408,532.80

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Solution

The fourth proportional to 730,809.60, 1,008,522.72 and 408,532.80 is: 563,778.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,809.60 : 1,008,522.72 = 408,532.80 : x
  2. Step 2: Convert to fraction form
    730,809.60/1,008,522.72 = 408,532.80/x
  3. Step 3: Cross multiply
    730,809.60x = 1,008,522.72 × 408,532.80
  4. Step 4: Simplify right side
    730,809.60x = 412,014,610,665.22
  5. Step 5: Solve for x
    x = 412,014,610,665.22/730,809.60
  6. Step 6: Final answer
    x = 563,778.32

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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.