Home / 687,296.37-948,423.41-381,353.35

Finding the Fourth Proportional to 687,296.37, 948,423.41 and 381,353.35

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Solution

The fourth proportional to 687,296.37, 948,423.41 and 381,353.35 is: 526,242.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,296.37 : 948,423.41 = 381,353.35 : x
  2. Step 2: Convert to fraction form
    687,296.37/948,423.41 = 381,353.35/x
  3. Step 3: Cross multiply
    687,296.37x = 948,423.41 × 381,353.35
  4. Step 4: Simplify right side
    687,296.37x = 361,684,442,715.16
  5. Step 5: Solve for x
    x = 361,684,442,715.16/687,296.37
  6. Step 6: Final answer
    x = 526,242.33

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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.