Home / 313,831.02-472,454.15-285,930.30

Finding the Fourth Proportional to 313,831.02, 472,454.15 and 285,930.30

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Solution

The fourth proportional to 313,831.02, 472,454.15 and 285,930.30 is: 430,451.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,831.02 : 472,454.15 = 285,930.30 : x
  2. Step 2: Convert to fraction form
    313,831.02/472,454.15 = 285,930.30/x
  3. Step 3: Cross multiply
    313,831.02x = 472,454.15 × 285,930.30
  4. Step 4: Simplify right side
    313,831.02x = 135,088,956,845.75
  5. Step 5: Solve for x
    x = 135,088,956,845.75/313,831.02
  6. Step 6: Final answer
    x = 430,451.26

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.