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Finding the Fourth Proportional to 634,510.78, 875,626.14 and 348,033.22

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Solution

The fourth proportional to 634,510.78, 875,626.14 and 348,033.22 is: 480,286.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,510.78 : 875,626.14 = 348,033.22 : x
  2. Step 2: Convert to fraction form
    634,510.78/875,626.14 = 348,033.22/x
  3. Step 3: Cross multiply
    634,510.78x = 875,626.14 × 348,033.22
  4. Step 4: Simplify right side
    634,510.78x = 304,746,985,020.37
  5. Step 5: Solve for x
    x = 304,746,985,020.37/634,510.78
  6. Step 6: Final answer
    x = 480,286.54

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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.