Home / 881,071.26-1,215,854.72-518,516.48

Finding the Fourth Proportional to 881,071.26, 1,215,854.72 and 518,516.48

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Solution

The fourth proportional to 881,071.26, 1,215,854.72 and 518,516.48 is: 715,538.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,071.26 : 1,215,854.72 = 518,516.48 : x
  2. Step 2: Convert to fraction form
    881,071.26/1,215,854.72 = 518,516.48/x
  3. Step 3: Cross multiply
    881,071.26x = 1,215,854.72 × 518,516.48
  4. Step 4: Simplify right side
    881,071.26x = 630,440,709,605.79
  5. Step 5: Solve for x
    x = 630,440,709,605.79/881,071.26
  6. Step 6: Final answer
    x = 715,538.84

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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.