Home / 498,973.60-748,460.40-143,999.20

Finding the Fourth Proportional to 498,973.60, 748,460.40 and 143,999.20

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Solution

The fourth proportional to 498,973.60, 748,460.40 and 143,999.20 is: 215,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,973.60 : 748,460.40 = 143,999.20 : x
  2. Step 2: Convert to fraction form
    498,973.60/748,460.40 = 143,999.20/x
  3. Step 3: Cross multiply
    498,973.60x = 748,460.40 × 143,999.20
  4. Step 4: Simplify right side
    498,973.60x = 107,777,698,831.68
  5. Step 5: Solve for x
    x = 107,777,698,831.68/498,973.60
  6. Step 6: Final answer
    x = 215,998.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.