Home / 628,788.10-867,713.85-367,188.35

Finding the Fourth Proportional to 628,788.10, 867,713.85 and 367,188.35

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Solution

The fourth proportional to 628,788.10, 867,713.85 and 367,188.35 is: 506,711.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,788.10 : 867,713.85 = 367,188.35 : x
  2. Step 2: Convert to fraction form
    628,788.10/867,713.85 = 367,188.35/x
  3. Step 3: Cross multiply
    628,788.10x = 867,713.85 × 367,188.35
  4. Step 4: Simplify right side
    628,788.10x = 318,614,416,853.65
  5. Step 5: Solve for x
    x = 318,614,416,853.65/628,788.10
  6. Step 6: Final answer
    x = 506,711.91

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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.