Home / 778,839.30-1,168,915.05-305,864.10

Finding the Fourth Proportional to 778,839.30, 1,168,915.05 and 305,864.10

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Solution

The fourth proportional to 778,839.30, 1,168,915.05 and 305,864.10 is: 459,053.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,839.30 : 1,168,915.05 = 305,864.10 : x
  2. Step 2: Convert to fraction form
    778,839.30/1,168,915.05 = 305,864.10/x
  3. Step 3: Cross multiply
    778,839.30x = 1,168,915.05 × 305,864.10
  4. Step 4: Simplify right side
    778,839.30x = 357,529,149,744.71
  5. Step 5: Solve for x
    x = 357,529,149,744.71/778,839.30
  6. Step 6: Final answer
    x = 459,053.81

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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.