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Finding the Fourth Proportional to 700.86, 1,050.42 and 614.01

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Solution

The fourth proportional to 700.86, 1,050.42 and 614.01 is: 920.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.86 : 1,050.42 = 614.01 : x
  2. Step 2: Convert to fraction form
    700.86/1,050.42 = 614.01/x
  3. Step 3: Cross multiply
    700.86x = 1,050.42 × 614.01
  4. Step 4: Simplify right side
    700.86x = 644,968.38
  5. Step 5: Solve for x
    x = 644,968.38/700.86
  6. Step 6: Final answer
    x = 920.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.