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Finding the Fourth Proportional to 583,279, 804,925.02 and 315,007

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Solution

The fourth proportional to 583,279, 804,925.02 and 315,007 is: 434,709.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,279 : 804,925.02 = 315,007 : x
  2. Step 2: Convert to fraction form
    583,279/804,925.02 = 315,007/x
  3. Step 3: Cross multiply
    583,279x = 804,925.02 × 315,007
  4. Step 4: Simplify right side
    583,279x = 253,557,015,775.14
  5. Step 5: Solve for x
    x = 253,557,015,775.14/583,279
  6. Step 6: Final answer
    x = 434,709.66

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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.