Home / 743,154.24-1,025,518.55-420,866.65

Finding the Fourth Proportional to 743,154.24, 1,025,518.55 and 420,866.65

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Solution

The fourth proportional to 743,154.24, 1,025,518.55 and 420,866.65 is: 580,776.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,154.24 : 1,025,518.55 = 420,866.65 : x
  2. Step 2: Convert to fraction form
    743,154.24/1,025,518.55 = 420,866.65/x
  3. Step 3: Cross multiply
    743,154.24x = 1,025,518.55 × 420,866.65
  4. Step 4: Simplify right side
    743,154.24x = 431,606,556,651.36
  5. Step 5: Solve for x
    x = 431,606,556,651.36/743,154.24
  6. Step 6: Final answer
    x = 580,776.55

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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.