Home / 746,522.70-1,118,552.85-430,428.30

Finding the Fourth Proportional to 746,522.70, 1,118,552.85 and 430,428.30

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Solution

The fourth proportional to 746,522.70, 1,118,552.85 and 430,428.30 is: 644,932.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,522.70 : 1,118,552.85 = 430,428.30 : x
  2. Step 2: Convert to fraction form
    746,522.70/1,118,552.85 = 430,428.30/x
  3. Step 3: Cross multiply
    746,522.70x = 1,118,552.85 × 430,428.30
  4. Step 4: Simplify right side
    746,522.70x = 481,456,801,685.66
  5. Step 5: Solve for x
    x = 481,456,801,685.66/746,522.70
  6. Step 6: Final answer
    x = 644,932.57

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Double scale
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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.