Home / 743,007.06-1,025,340.12-420,716.16

Finding the Fourth Proportional to 743,007.06, 1,025,340.12 and 420,716.16

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Solution

The fourth proportional to 743,007.06, 1,025,340.12 and 420,716.16 is: 580,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,007.06 : 1,025,340.12 = 420,716.16 : x
  2. Step 2: Convert to fraction form
    743,007.06/1,025,340.12 = 420,716.16/x
  3. Step 3: Cross multiply
    743,007.06x = 1,025,340.12 × 420,716.16
  4. Step 4: Simplify right side
    743,007.06x = 431,377,157,980.34
  5. Step 5: Solve for x
    x = 431,377,157,980.34/743,007.06
  6. Step 6: Final answer
    x = 580,582.85

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.