Home / 1,098,050.87-1,516,255.86-690,831.47

Finding the Fourth Proportional to 1,098,050.87, 1,516,255.86 and 690,831.47

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Solution

The fourth proportional to 1,098,050.87, 1,516,255.86 and 690,831.47 is: 953,942.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,050.87 : 1,516,255.86 = 690,831.47 : x
  2. Step 2: Convert to fraction form
    1,098,050.87/1,516,255.86 = 690,831.47/x
  3. Step 3: Cross multiply
    1,098,050.87x = 1,516,255.86 × 690,831.47
  4. Step 4: Simplify right side
    1,098,050.87x = 1,047,477,257,078.63
  5. Step 5: Solve for x
    x = 1,047,477,257,078.63/1,098,050.87
  6. Step 6: Final answer
    x = 953,942.38

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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.