Home / 1,025,698.20-1,538,831.70-426,941.40

Finding the Fourth Proportional to 1,025,698.20, 1,538,831.70 and 426,941.40

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Solution

The fourth proportional to 1,025,698.20, 1,538,831.70 and 426,941.40 is: 640,530.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,698.20 : 1,538,831.70 = 426,941.40 : x
  2. Step 2: Convert to fraction form
    1,025,698.20/1,538,831.70 = 426,941.40/x
  3. Step 3: Cross multiply
    1,025,698.20x = 1,538,831.70 × 426,941.40
  4. Step 4: Simplify right side
    1,025,698.20x = 656,990,960,362.38
  5. Step 5: Solve for x
    x = 656,990,960,362.38/1,025,698.20
  6. Step 6: Final answer
    x = 640,530.48

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1.5x scale

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.