Home / 687,246.36-948,385.53-381,316.16

Finding the Fourth Proportional to 687,246.36, 948,385.53 and 381,316.16

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Solution

The fourth proportional to 687,246.36, 948,385.53 and 381,316.16 is: 526,208.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,246.36 : 948,385.53 = 381,316.16 : x
  2. Step 2: Convert to fraction form
    687,246.36/948,385.53 = 381,316.16/x
  3. Step 3: Cross multiply
    687,246.36x = 948,385.53 × 381,316.16
  4. Step 4: Simplify right side
    687,246.36x = 361,634,723,757.24
  5. Step 5: Solve for x
    x = 361,634,723,757.24/687,246.36
  6. Step 6: Final answer
    x = 526,208.28

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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.