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Finding the Fourth Proportional to 674,243.36, 930,453 and 372,437.36

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Solution

The fourth proportional to 674,243.36, 930,453 and 372,437.36 is: 513,961.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,243.36 : 930,453 = 372,437.36 : x
  2. Step 2: Convert to fraction form
    674,243.36/930,453 = 372,437.36/x
  3. Step 3: Cross multiply
    674,243.36x = 930,453 × 372,437.36
  4. Step 4: Simplify right side
    674,243.36x = 346,535,458,924.08
  5. Step 5: Solve for x
    x = 346,535,458,924.08/674,243.36
  6. Step 6: Final answer
    x = 513,961.99

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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.