Home / 1,117.07-1,541.58-619.73

Finding the Fourth Proportional to 1,117.07, 1,541.58 and 619.73

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Solution

The fourth proportional to 1,117.07, 1,541.58 and 619.73 is: 855.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.07 : 1,541.58 = 619.73 : x
  2. Step 2: Convert to fraction form
    1,117.07/1,541.58 = 619.73/x
  3. Step 3: Cross multiply
    1,117.07x = 1,541.58 × 619.73
  4. Step 4: Simplify right side
    1,117.07x = 955,362.61
  5. Step 5: Solve for x
    x = 955,362.61/1,117.07
  6. Step 6: Final answer
    x = 855.24

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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.