Home / 921,109.80-1,375,187.97-703,831.40

Finding the Fourth Proportional to 921,109.80, 1,375,187.97 and 703,831.40

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Solution

The fourth proportional to 921,109.80, 1,375,187.97 and 703,831.40 is: 1,050,798.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,109.80 : 1,375,187.97 = 703,831.40 : x
  2. Step 2: Convert to fraction form
    921,109.80/1,375,187.97 = 703,831.40/x
  3. Step 3: Cross multiply
    921,109.80x = 1,375,187.97 × 703,831.40
  4. Step 4: Simplify right side
    921,109.80x = 967,900,470,669.10
  5. Step 5: Solve for x
    x = 967,900,470,669.10/921,109.80
  6. Step 6: Final answer
    x = 1,050,798.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.