Home / 693,085.28-1,038,636.48-313,062.44

Finding the Fourth Proportional to 693,085.28, 1,038,636.48 and 313,062.44

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Solution

The fourth proportional to 693,085.28, 1,038,636.48 and 313,062.44 is: 469,145.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,085.28 : 1,038,636.48 = 313,062.44 : x
  2. Step 2: Convert to fraction form
    693,085.28/1,038,636.48 = 313,062.44/x
  3. Step 3: Cross multiply
    693,085.28x = 1,038,636.48 × 313,062.44
  4. Step 4: Simplify right side
    693,085.28x = 325,158,070,701.81
  5. Step 5: Solve for x
    x = 325,158,070,701.81/693,085.28
  6. Step 6: Final answer
    x = 469,145.83

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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.