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Finding the Fourth Proportional to 635,715.52, 877,277.71 and 345,325.66

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Solution

The fourth proportional to 635,715.52, 877,277.71 and 345,325.66 is: 476,544.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,715.52 : 877,277.71 = 345,325.66 : x
  2. Step 2: Convert to fraction form
    635,715.52/877,277.71 = 345,325.66/x
  3. Step 3: Cross multiply
    635,715.52x = 877,277.71 × 345,325.66
  4. Step 4: Simplify right side
    635,715.52x = 302,946,504,209.04
  5. Step 5: Solve for x
    x = 302,946,504,209.04/635,715.52
  6. Step 6: Final answer
    x = 476,544.14

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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.