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Finding the Fourth Proportional to 448,870, 619,453.57 and 247,678.96

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Solution

The fourth proportional to 448,870, 619,453.57 and 247,678.96 is: 341,804.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,870 : 619,453.57 = 247,678.96 : x
  2. Step 2: Convert to fraction form
    448,870/619,453.57 = 247,678.96/x
  3. Step 3: Cross multiply
    448,870x = 619,453.57 × 247,678.96
  4. Step 4: Simplify right side
    448,870x = 153,425,615,985.89
  5. Step 5: Solve for x
    x = 153,425,615,985.89/448,870
  6. Step 6: Final answer
    x = 341,804.12

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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.