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Finding the Fourth Proportional to 508,538.04, 701,918.64 and 317,436.36

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Solution

The fourth proportional to 508,538.04, 701,918.64 and 317,436.36 is: 438,147.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,538.04 : 701,918.64 = 317,436.36 : x
  2. Step 2: Convert to fraction form
    508,538.04/701,918.64 = 317,436.36/x
  3. Step 3: Cross multiply
    508,538.04x = 701,918.64 × 317,436.36
  4. Step 4: Simplify right side
    508,538.04x = 222,814,498,097.75
  5. Step 5: Solve for x
    x = 222,814,498,097.75/508,538.04
  6. Step 6: Final answer
    x = 438,147.16

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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.