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Finding the Fourth Proportional to 507,708.29, 761,365.59 and 270,921.80

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Solution

The fourth proportional to 507,708.29, 761,365.59 and 270,921.80 is: 406,277.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,708.29 : 761,365.59 = 270,921.80 : x
  2. Step 2: Convert to fraction form
    507,708.29/761,365.59 = 270,921.80/x
  3. Step 3: Cross multiply
    507,708.29x = 761,365.59 × 270,921.80
  4. Step 4: Simplify right side
    507,708.29x = 206,270,532,294.03
  5. Step 5: Solve for x
    x = 206,270,532,294.03/507,708.29
  6. Step 6: Final answer
    x = 406,277.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.