Home / 448,981.26-619,437.78-287,925.10

Finding the Fourth Proportional to 448,981.26, 619,437.78 and 287,925.10

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Solution

The fourth proportional to 448,981.26, 619,437.78 and 287,925.10 is: 397,236.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,981.26 : 619,437.78 = 287,925.10 : x
  2. Step 2: Convert to fraction form
    448,981.26/619,437.78 = 287,925.10/x
  3. Step 3: Cross multiply
    448,981.26x = 619,437.78 × 287,925.10
  4. Step 4: Simplify right side
    448,981.26x = 178,351,684,750.28
  5. Step 5: Solve for x
    x = 178,351,684,750.28/448,981.26
  6. Step 6: Final answer
    x = 397,236.37

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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.