Home / 1,397,043.15-1,928,259.08-853,636.53

Finding the Fourth Proportional to 1,397,043.15, 1,928,259.08 and 853,636.53

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Solution

The fourth proportional to 1,397,043.15, 1,928,259.08 and 853,636.53 is: 1,178,225.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,043.15 : 1,928,259.08 = 853,636.53 : x
  2. Step 2: Convert to fraction form
    1,397,043.15/1,928,259.08 = 853,636.53/x
  3. Step 3: Cross multiply
    1,397,043.15x = 1,928,259.08 × 853,636.53
  4. Step 4: Simplify right side
    1,397,043.15x = 1,646,032,381,694.18
  5. Step 5: Solve for x
    x = 1,646,032,381,694.18/1,397,043.15
  6. Step 6: Final answer
    x = 1,178,225.87

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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.