Home / 448,781.60-619,376.18-257,831.90

Finding the Fourth Proportional to 448,781.60, 619,376.18 and 257,831.90

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Solution

The fourth proportional to 448,781.60, 619,376.18 and 257,831.90 is: 355,841.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,781.60 : 619,376.18 = 257,831.90 : x
  2. Step 2: Convert to fraction form
    448,781.60/619,376.18 = 257,831.90/x
  3. Step 3: Cross multiply
    448,781.60x = 619,376.18 × 257,831.90
  4. Step 4: Simplify right side
    448,781.60x = 159,694,937,304.14
  5. Step 5: Solve for x
    x = 159,694,937,304.14/448,781.60
  6. Step 6: Final answer
    x = 355,841.10

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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.