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Finding the Fourth Proportional to 504,703.65, 696,471.79 and 278,349.15

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Solution

The fourth proportional to 504,703.65, 696,471.79 and 278,349.15 is: 384,111.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,703.65 : 696,471.79 = 278,349.15 : x
  2. Step 2: Convert to fraction form
    504,703.65/696,471.79 = 278,349.15/x
  3. Step 3: Cross multiply
    504,703.65x = 696,471.79 × 278,349.15
  4. Step 4: Simplify right side
    504,703.65x = 193,862,330,745.48
  5. Step 5: Solve for x
    x = 193,862,330,745.48/504,703.65
  6. Step 6: Final answer
    x = 384,111.21

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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.