Home / 743,154.27-1,025,518.59-420,866.70

Finding the Fourth Proportional to 743,154.27, 1,025,518.59 and 420,866.70

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Solution

The fourth proportional to 743,154.27, 1,025,518.59 and 420,866.70 is: 580,776.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,154.27 : 1,025,518.59 = 420,866.70 : x
  2. Step 2: Convert to fraction form
    743,154.27/1,025,518.59 = 420,866.70/x
  3. Step 3: Cross multiply
    743,154.27x = 1,025,518.59 × 420,866.70
  4. Step 4: Simplify right side
    743,154.27x = 431,606,624,761.95
  5. Step 5: Solve for x
    x = 431,606,624,761.95/743,154.27
  6. Step 6: Final answer
    x = 580,776.62

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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.