Home / 628,484.45-867,326.63-342,022.68

Finding the Fourth Proportional to 628,484.45, 867,326.63 and 342,022.68

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Solution

The fourth proportional to 628,484.45, 867,326.63 and 342,022.68 is: 472,001.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,484.45 : 867,326.63 = 342,022.68 : x
  2. Step 2: Convert to fraction form
    628,484.45/867,326.63 = 342,022.68/x
  3. Step 3: Cross multiply
    628,484.45x = 867,326.63 × 342,022.68
  4. Step 4: Simplify right side
    628,484.45x = 296,645,376,717.86
  5. Step 5: Solve for x
    x = 296,645,376,717.86/628,484.45
  6. Step 6: Final answer
    x = 472,001.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.