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Finding the Fourth Proportional to 1,040.06, 1,435.53 and 626.06

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Solution

The fourth proportional to 1,040.06, 1,435.53 and 626.06 is: 864.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.06 : 1,435.53 = 626.06 : x
  2. Step 2: Convert to fraction form
    1,040.06/1,435.53 = 626.06/x
  3. Step 3: Cross multiply
    1,040.06x = 1,435.53 × 626.06
  4. Step 4: Simplify right side
    1,040.06x = 898,727.91
  5. Step 5: Solve for x
    x = 898,727.91/1,040.06
  6. Step 6: Final answer
    x = 864.11

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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.