Home / 716,217.18-1,074,393.21-210,778.40

Finding the Fourth Proportional to 716,217.18, 1,074,393.21 and 210,778.40

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Solution

The fourth proportional to 716,217.18, 1,074,393.21 and 210,778.40 is: 316,187.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,217.18 : 1,074,393.21 = 210,778.40 : x
  2. Step 2: Convert to fraction form
    716,217.18/1,074,393.21 = 210,778.40/x
  3. Step 3: Cross multiply
    716,217.18x = 1,074,393.21 × 210,778.40
  4. Step 4: Simplify right side
    716,217.18x = 226,458,881,774.66
  5. Step 5: Solve for x
    x = 226,458,881,774.66/716,217.18
  6. Step 6: Final answer
    x = 316,187.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.