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Finding the Fourth Proportional to 713.02, 981.03 and 619.51

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Solution

The fourth proportional to 713.02, 981.03 and 619.51 is: 852.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    713.02 : 981.03 = 619.51 : x
  2. Step 2: Convert to fraction form
    713.02/981.03 = 619.51/x
  3. Step 3: Cross multiply
    713.02x = 981.03 × 619.51
  4. Step 4: Simplify right side
    713.02x = 607,757.90
  5. Step 5: Solve for x
    x = 607,757.90/713.02
  6. Step 6: Final answer
    x = 852.37

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1.5x scale

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.