Home / 741,780.40-1,112,674.38-315,206.32

Finding the Fourth Proportional to 741,780.40, 1,112,674.38 and 315,206.32

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Solution

The fourth proportional to 741,780.40, 1,112,674.38 and 315,206.32 is: 472,811.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,780.40 : 1,112,674.38 = 315,206.32 : x
  2. Step 2: Convert to fraction form
    741,780.40/1,112,674.38 = 315,206.32/x
  3. Step 3: Cross multiply
    741,780.40x = 1,112,674.38 × 315,206.32
  4. Step 4: Simplify right side
    741,780.40x = 350,721,996,678.08
  5. Step 5: Solve for x
    x = 350,721,996,678.08/741,780.40
  6. Step 6: Final answer
    x = 472,811.09

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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.