Home / 1,399,680-2,099,831.04-513,216

Finding the Fourth Proportional to 1,399,680, 2,099,831.04 and 513,216

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Solution

The fourth proportional to 1,399,680, 2,099,831.04 and 513,216 is: 769,938.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,680 : 2,099,831.04 = 513,216 : x
  2. Step 2: Convert to fraction form
    1,399,680/2,099,831.04 = 513,216/x
  3. Step 3: Cross multiply
    1,399,680x = 2,099,831.04 × 513,216
  4. Step 4: Simplify right side
    1,399,680x = 1,077,666,887,024.64
  5. Step 5: Solve for x
    x = 1,077,666,887,024.64/1,399,680
  6. Step 6: Final answer
    x = 769,938.05

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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.