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Finding the Fourth Proportional to 554,286.65, 765,123.57 and 363,312.34

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Solution

The fourth proportional to 554,286.65, 765,123.57 and 363,312.34 is: 501,507.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,286.65 : 765,123.57 = 363,312.34 : x
  2. Step 2: Convert to fraction form
    554,286.65/765,123.57 = 363,312.34/x
  3. Step 3: Cross multiply
    554,286.65x = 765,123.57 × 363,312.34
  4. Step 4: Simplify right side
    554,286.65x = 277,978,832,693.05
  5. Step 5: Solve for x
    x = 277,978,832,693.05/554,286.65
  6. Step 6: Final answer
    x = 501,507.36

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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.