Home / 687,599.48-948,839.76-381,651.81

Finding the Fourth Proportional to 687,599.48, 948,839.76 and 381,651.81

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Solution

The fourth proportional to 687,599.48, 948,839.76 and 381,651.81 is: 526,653.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,599.48 : 948,839.76 = 381,651.81 : x
  2. Step 2: Convert to fraction form
    687,599.48/948,839.76 = 381,651.81/x
  3. Step 3: Cross multiply
    687,599.48x = 948,839.76 × 381,651.81
  4. Step 4: Simplify right side
    687,599.48x = 362,126,411,803.97
  5. Step 5: Solve for x
    x = 362,126,411,803.97/687,599.48
  6. Step 6: Final answer
    x = 526,653.12

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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.