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Finding the Fourth Proportional to 507,308.37, 700,084.02 and 286,521.48

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Solution

The fourth proportional to 507,308.37, 700,084.02 and 286,521.48 is: 395,398.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,308.37 : 700,084.02 = 286,521.48 : x
  2. Step 2: Convert to fraction form
    507,308.37/700,084.02 = 286,521.48/x
  3. Step 3: Cross multiply
    507,308.37x = 700,084.02 × 286,521.48
  4. Step 4: Simplify right side
    507,308.37x = 200,589,109,534.75
  5. Step 5: Solve for x
    x = 200,589,109,534.75/507,308.37
  6. Step 6: Final answer
    x = 395,398.78

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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.