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Finding the Fourth Proportional to 670,491.72, 925,146.10 and 376,151.24

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Solution

The fourth proportional to 670,491.72, 925,146.10 and 376,151.24 is: 519,014.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,491.72 : 925,146.10 = 376,151.24 : x
  2. Step 2: Convert to fraction form
    670,491.72/925,146.10 = 376,151.24/x
  3. Step 3: Cross multiply
    670,491.72x = 925,146.10 × 376,151.24
  4. Step 4: Simplify right side
    670,491.72x = 347,994,852,696.16
  5. Step 5: Solve for x
    x = 347,994,852,696.16/670,491.72
  6. Step 6: Final answer
    x = 519,014.39

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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.