Home / 697,613.81-962,648.13-422,074.32

Finding the Fourth Proportional to 697,613.81, 962,648.13 and 422,074.32

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Solution

The fourth proportional to 697,613.81, 962,648.13 and 422,074.32 is: 582,426.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,613.81 : 962,648.13 = 422,074.32 : x
  2. Step 2: Convert to fraction form
    697,613.81/962,648.13 = 422,074.32/x
  3. Step 3: Cross multiply
    697,613.81x = 962,648.13 × 422,074.32
  4. Step 4: Simplify right side
    697,613.81x = 406,309,060,061.73
  5. Step 5: Solve for x
    x = 406,309,060,061.73/697,613.81
  6. Step 6: Final answer
    x = 582,426.91

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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.