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Finding the Fourth Proportional to 557,568.80, 769,440.80 and 302,922.08

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Solution

The fourth proportional to 557,568.80, 769,440.80 and 302,922.08 is: 418,030.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,568.80 : 769,440.80 = 302,922.08 : x
  2. Step 2: Convert to fraction form
    557,568.80/769,440.80 = 302,922.08/x
  3. Step 3: Cross multiply
    557,568.80x = 769,440.80 × 302,922.08
  4. Step 4: Simplify right side
    557,568.80x = 233,080,607,572.86
  5. Step 5: Solve for x
    x = 233,080,607,572.86/557,568.80
  6. Step 6: Final answer
    x = 418,030.22

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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.