Home / 874,815.98-1,207,271.64-512,205.92

Finding the Fourth Proportional to 874,815.98, 1,207,271.64 and 512,205.92

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Solution

The fourth proportional to 874,815.98, 1,207,271.64 and 512,205.92 is: 706,859.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,815.98 : 1,207,271.64 = 512,205.92 : x
  2. Step 2: Convert to fraction form
    874,815.98/1,207,271.64 = 512,205.92/x
  3. Step 3: Cross multiply
    874,815.98x = 1,207,271.64 × 512,205.92
  4. Step 4: Simplify right side
    874,815.98x = 618,371,676,940.52
  5. Step 5: Solve for x
    x = 618,371,676,940.52/874,815.98
  6. Step 6: Final answer
    x = 706,859.14

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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.