Home / 747,309.15-1,121,151.47-214,831.13

Finding the Fourth Proportional to 747,309.15, 1,121,151.47 and 214,831.13

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Solution

The fourth proportional to 747,309.15, 1,121,151.47 and 214,831.13 is: 322,300.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,309.15 : 1,121,151.47 = 214,831.13 : x
  2. Step 2: Convert to fraction form
    747,309.15/1,121,151.47 = 214,831.13/x
  3. Step 3: Cross multiply
    747,309.15x = 1,121,151.47 × 214,831.13
  4. Step 4: Simplify right side
    747,309.15x = 240,858,230,521.35
  5. Step 5: Solve for x
    x = 240,858,230,521.35/747,309.15
  6. Step 6: Final answer
    x = 322,300.66

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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.