Home / 687,095.43-948,192.80-381,171.81

Finding the Fourth Proportional to 687,095.43, 948,192.80 and 381,171.81

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Solution

The fourth proportional to 687,095.43, 948,192.80 and 381,171.81 is: 526,017.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,095.43 : 948,192.80 = 381,171.81 : x
  2. Step 2: Convert to fraction form
    687,095.43/948,192.80 = 381,171.81/x
  3. Step 3: Cross multiply
    687,095.43x = 948,192.80 × 381,171.81
  4. Step 4: Simplify right side
    687,095.43x = 361,424,365,804.97
  5. Step 5: Solve for x
    x = 361,424,365,804.97/687,095.43
  6. Step 6: Final answer
    x = 526,017.72

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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.