Home / 683,742.60-1,025,613.90-644,376.60

Finding the Fourth Proportional to 683,742.60, 1,025,613.90 and 644,376.60

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Solution

The fourth proportional to 683,742.60, 1,025,613.90 and 644,376.60 is: 966,564.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,742.60 : 1,025,613.90 = 644,376.60 : x
  2. Step 2: Convert to fraction form
    683,742.60/1,025,613.90 = 644,376.60/x
  3. Step 3: Cross multiply
    683,742.60x = 1,025,613.90 × 644,376.60
  4. Step 4: Simplify right side
    683,742.60x = 660,881,597,794.74
  5. Step 5: Solve for x
    x = 660,881,597,794.74/683,742.60
  6. Step 6: Final answer
    x = 966,564.90

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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.