Home / 781,831.70-1,172,996.49-349,482.86

Finding the Fourth Proportional to 781,831.70, 1,172,996.49 and 349,482.86

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Solution

The fourth proportional to 781,831.70, 1,172,996.49 and 349,482.86 is: 524,335.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,831.70 : 1,172,996.49 = 349,482.86 : x
  2. Step 2: Convert to fraction form
    781,831.70/1,172,996.49 = 349,482.86/x
  3. Step 3: Cross multiply
    781,831.70x = 1,172,996.49 × 349,482.86
  4. Step 4: Simplify right side
    781,831.70x = 409,942,168,095.16
  5. Step 5: Solve for x
    x = 409,942,168,095.16/781,831.70
  6. Step 6: Final answer
    x = 524,335.57

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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.