Home / 1,487,830.20-2,231,831.70-422,950.20

Finding the Fourth Proportional to 1,487,830.20, 2,231,831.70 and 422,950.20

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Solution

The fourth proportional to 1,487,830.20, 2,231,831.70 and 422,950.20 is: 634,449.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,830.20 : 2,231,831.70 = 422,950.20 : x
  2. Step 2: Convert to fraction form
    1,487,830.20/2,231,831.70 = 422,950.20/x
  3. Step 3: Cross multiply
    1,487,830.20x = 2,231,831.70 × 422,950.20
  4. Step 4: Simplify right side
    1,487,830.20x = 943,953,663,881.34
  5. Step 5: Solve for x
    x = 943,953,663,881.34/1,487,830.20
  6. Step 6: Final answer
    x = 634,449.86

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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.