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Finding the Fourth Proportional to 1,040.01, 1,435.08 and 574.26

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Solution

The fourth proportional to 1,040.01, 1,435.08 and 574.26 is: 792.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.01 : 1,435.08 = 574.26 : x
  2. Step 2: Convert to fraction form
    1,040.01/1,435.08 = 574.26/x
  3. Step 3: Cross multiply
    1,040.01x = 1,435.08 × 574.26
  4. Step 4: Simplify right side
    1,040.01x = 824,109.04
  5. Step 5: Solve for x
    x = 824,109.04/1,040.01
  6. Step 6: Final answer
    x = 792.40

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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.