Home / 1,138,715.12-1,571,583.12-655,270.40

Finding the Fourth Proportional to 1,138,715.12, 1,571,583.12 and 655,270.40

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Solution

The fourth proportional to 1,138,715.12, 1,571,583.12 and 655,270.40 is: 904,363.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,715.12 : 1,571,583.12 = 655,270.40 : x
  2. Step 2: Convert to fraction form
    1,138,715.12/1,571,583.12 = 655,270.40/x
  3. Step 3: Cross multiply
    1,138,715.12x = 1,571,583.12 × 655,270.40
  4. Step 4: Simplify right side
    1,138,715.12x = 1,029,811,899,675.65
  5. Step 5: Solve for x
    x = 1,029,811,899,675.65/1,138,715.12
  6. Step 6: Final answer
    x = 904,363.07

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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.