Home / 778,836.80-1,168,562.40-305,441.60

Finding the Fourth Proportional to 778,836.80, 1,168,562.40 and 305,441.60

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Solution

The fourth proportional to 778,836.80, 1,168,562.40 and 305,441.60 is: 458,282.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,836.80 : 1,168,562.40 = 305,441.60 : x
  2. Step 2: Convert to fraction form
    778,836.80/1,168,562.40 = 305,441.60/x
  3. Step 3: Cross multiply
    778,836.80x = 1,168,562.40 × 305,441.60
  4. Step 4: Simplify right side
    778,836.80x = 356,927,569,155.84
  5. Step 5: Solve for x
    x = 356,927,569,155.84/778,836.80
  6. Step 6: Final answer
    x = 458,282.88

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1.5x scale

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.