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Finding the Fourth Proportional to 914.77, 1,262.56 and 693.33

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Solution

The fourth proportional to 914.77, 1,262.56 and 693.33 is: 956.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    914.77 : 1,262.56 = 693.33 : x
  2. Step 2: Convert to fraction form
    914.77/1,262.56 = 693.33/x
  3. Step 3: Cross multiply
    914.77x = 1,262.56 × 693.33
  4. Step 4: Simplify right side
    914.77x = 875,368.99
  5. Step 5: Solve for x
    x = 875,368.99/914.77
  6. Step 6: Final answer
    x = 956.93

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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.