Home / 960,308.25-1,321,400.75-931,089.93

Finding the Fourth Proportional to 960,308.25, 1,321,400.75 and 931,089.93

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Solution

The fourth proportional to 960,308.25, 1,321,400.75 and 931,089.93 is: 1,281,195.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,308.25 : 1,321,400.75 = 931,089.93 : x
  2. Step 2: Convert to fraction form
    960,308.25/1,321,400.75 = 931,089.93/x
  3. Step 3: Cross multiply
    960,308.25x = 1,321,400.75 × 931,089.93
  4. Step 4: Simplify right side
    960,308.25x = 1,230,342,931,819.45
  5. Step 5: Solve for x
    x = 1,230,342,931,819.45/960,308.25
  6. Step 6: Final answer
    x = 1,281,195.84

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Double scale
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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.