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Finding the Fourth Proportional to 745.58, 1,029.01 and 536.45

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Solution

The fourth proportional to 745.58, 1,029.01 and 536.45 is: 740.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    745.58 : 1,029.01 = 536.45 : x
  2. Step 2: Convert to fraction form
    745.58/1,029.01 = 536.45/x
  3. Step 3: Cross multiply
    745.58x = 1,029.01 × 536.45
  4. Step 4: Simplify right side
    745.58x = 552,011.34
  5. Step 5: Solve for x
    x = 552,011.34/745.58
  6. Step 6: Final answer
    x = 740.38

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Double scale
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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.