Home / 759,698.61-1,139,127.19-310,734.78

Finding the Fourth Proportional to 759,698.61, 1,139,127.19 and 310,734.78

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Solution

The fourth proportional to 759,698.61, 1,139,127.19 and 310,734.78 is: 465,930.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,698.61 : 1,139,127.19 = 310,734.78 : x
  2. Step 2: Convert to fraction form
    759,698.61/1,139,127.19 = 310,734.78/x
  3. Step 3: Cross multiply
    759,698.61x = 1,139,127.19 × 310,734.78
  4. Step 4: Simplify right side
    759,698.61x = 353,966,436,776.67
  5. Step 5: Solve for x
    x = 353,966,436,776.67/759,698.61
  6. Step 6: Final answer
    x = 465,930.08

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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.