Home / 1,275,938.80-1,913,844.54-477,161.62

Finding the Fourth Proportional to 1,275,938.80, 1,913,844.54 and 477,161.62

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Solution

The fourth proportional to 1,275,938.80, 1,913,844.54 and 477,161.62 is: 715,718.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,938.80 : 1,913,844.54 = 477,161.62 : x
  2. Step 2: Convert to fraction form
    1,275,938.80/1,913,844.54 = 477,161.62/x
  3. Step 3: Cross multiply
    1,275,938.80x = 1,913,844.54 × 477,161.62
  4. Step 4: Simplify right side
    1,275,938.80x = 913,213,161,134.56
  5. Step 5: Solve for x
    x = 913,213,161,134.56/1,275,938.80
  6. Step 6: Final answer
    x = 715,718.62

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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.