Home / 1,139,114.08-1,707,827.50-689,729.32

Finding the Fourth Proportional to 1,139,114.08, 1,707,827.50 and 689,729.32

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Solution

The fourth proportional to 1,139,114.08, 1,707,827.50 and 689,729.32 is: 1,034,083.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,114.08 : 1,707,827.50 = 689,729.32 : x
  2. Step 2: Convert to fraction form
    1,139,114.08/1,707,827.50 = 689,729.32/x
  3. Step 3: Cross multiply
    1,139,114.08x = 1,707,827.50 × 689,729.32
  4. Step 4: Simplify right side
    1,139,114.08x = 1,177,938,700,252.30
  5. Step 5: Solve for x
    x = 1,177,938,700,252.30/1,139,114.08
  6. Step 6: Final answer
    x = 1,034,083.17

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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.