Home / 738,377.70-1,107,566.55-422,574.90

Finding the Fourth Proportional to 738,377.70, 1,107,566.55 and 422,574.90

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Solution

The fourth proportional to 738,377.70, 1,107,566.55 and 422,574.90 is: 633,862.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,377.70 : 1,107,566.55 = 422,574.90 : x
  2. Step 2: Convert to fraction form
    738,377.70/1,107,566.55 = 422,574.90/x
  3. Step 3: Cross multiply
    738,377.70x = 1,107,566.55 × 422,574.90
  4. Step 4: Simplify right side
    738,377.70x = 468,029,824,109.60
  5. Step 5: Solve for x
    x = 468,029,824,109.60/738,377.70
  6. Step 6: Final answer
    x = 633,862.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.