Home / 730,989.60-1,008,786.60-408,700.52

Finding the Fourth Proportional to 730,989.60, 1,008,786.60 and 408,700.52

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Solution

The fourth proportional to 730,989.60, 1,008,786.60 and 408,700.52 is: 564,018.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,989.60 : 1,008,786.60 = 408,700.52 : x
  2. Step 2: Convert to fraction form
    730,989.60/1,008,786.60 = 408,700.52/x
  3. Step 3: Cross multiply
    730,989.60x = 1,008,786.60 × 408,700.52
  4. Step 4: Simplify right side
    730,989.60x = 412,291,607,989.03
  5. Step 5: Solve for x
    x = 412,291,607,989.03/730,989.60
  6. Step 6: Final answer
    x = 564,018.43

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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.