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Finding the Fourth Proportional to 539,284.60, 808,538.10 and 302,699.80

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Solution

The fourth proportional to 539,284.60, 808,538.10 and 302,699.80 is: 453,831.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,284.60 : 808,538.10 = 302,699.80 : x
  2. Step 2: Convert to fraction form
    539,284.60/808,538.10 = 302,699.80/x
  3. Step 3: Cross multiply
    539,284.60x = 808,538.10 × 302,699.80
  4. Step 4: Simplify right side
    539,284.60x = 244,744,321,162.38
  5. Step 5: Solve for x
    x = 244,744,321,162.38/539,284.60
  6. Step 6: Final answer
    x = 453,831.47

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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.