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Finding the Fourth Proportional to 539,010.40, 808,904.40 and 302,101.60

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Solution

The fourth proportional to 539,010.40, 808,904.40 and 302,101.60 is: 453,370.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,010.40 : 808,904.40 = 302,101.60 : x
  2. Step 2: Convert to fraction form
    539,010.40/808,904.40 = 302,101.60/x
  3. Step 3: Cross multiply
    539,010.40x = 808,904.40 × 302,101.60
  4. Step 4: Simplify right side
    539,010.40x = 244,371,313,487.04
  5. Step 5: Solve for x
    x = 244,371,313,487.04/539,010.40
  6. Step 6: Final answer
    x = 453,370.31

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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.