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Finding the Fourth Proportional to 1,041.78, 1,437.63 and 569.67

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Solution

The fourth proportional to 1,041.78, 1,437.63 and 569.67 is: 786.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041.78 : 1,437.63 = 569.67 : x
  2. Step 2: Convert to fraction form
    1,041.78/1,437.63 = 569.67/x
  3. Step 3: Cross multiply
    1,041.78x = 1,437.63 × 569.67
  4. Step 4: Simplify right side
    1,041.78x = 818,971.12
  5. Step 5: Solve for x
    x = 818,971.12/1,041.78
  6. Step 6: Final answer
    x = 786.13

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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.