Home / 743,019.42-1,025,370.74-420,792.24

Finding the Fourth Proportional to 743,019.42, 1,025,370.74 and 420,792.24

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Solution

The fourth proportional to 743,019.42, 1,025,370.74 and 420,792.24 is: 580,695.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,019.42 : 1,025,370.74 = 420,792.24 : x
  2. Step 2: Convert to fraction form
    743,019.42/1,025,370.74 = 420,792.24/x
  3. Step 3: Cross multiply
    743,019.42x = 1,025,370.74 × 420,792.24
  4. Step 4: Simplify right side
    743,019.42x = 431,468,051,567.04
  5. Step 5: Solve for x
    x = 431,468,051,567.04/743,019.42
  6. Step 6: Final answer
    x = 580,695.52

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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.