Home / 1,274,632.40-1,911,940.10-516,462.68

Finding the Fourth Proportional to 1,274,632.40, 1,911,940.10 and 516,462.68

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Solution

The fourth proportional to 1,274,632.40, 1,911,940.10 and 516,462.68 is: 774,690.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,632.40 : 1,911,940.10 = 516,462.68 : x
  2. Step 2: Convert to fraction form
    1,274,632.40/1,911,940.10 = 516,462.68/x
  3. Step 3: Cross multiply
    1,274,632.40x = 1,911,940.10 × 516,462.68
  4. Step 4: Simplify right side
    1,274,632.40x = 987,445,712,179.74
  5. Step 5: Solve for x
    x = 987,445,712,179.74/1,274,632.40
  6. Step 6: Final answer
    x = 774,690.58

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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.