Home / 498,072.51-687,336.84-283,212.50

Finding the Fourth Proportional to 498,072.51, 687,336.84 and 283,212.50

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Solution

The fourth proportional to 498,072.51, 687,336.84 and 283,212.50 is: 390,831.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,072.51 : 687,336.84 = 283,212.50 : x
  2. Step 2: Convert to fraction form
    498,072.51/687,336.84 = 283,212.50/x
  3. Step 3: Cross multiply
    498,072.51x = 687,336.84 × 283,212.50
  4. Step 4: Simplify right side
    498,072.51x = 194,662,381,361.82
  5. Step 5: Solve for x
    x = 194,662,381,361.82/498,072.51
  6. Step 6: Final answer
    x = 390,831.41

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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.