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Finding the Fourth Proportional to 557,852.04, 769,838.58 and 303,208.20

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Solution

The fourth proportional to 557,852.04, 769,838.58 and 303,208.20 is: 418,428.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,852.04 : 769,838.58 = 303,208.20 : x
  2. Step 2: Convert to fraction form
    557,852.04/769,838.58 = 303,208.20/x
  3. Step 3: Cross multiply
    557,852.04x = 769,838.58 × 303,208.20
  4. Step 4: Simplify right side
    557,852.04x = 233,421,370,132.36
  5. Step 5: Solve for x
    x = 233,421,370,132.36/557,852.04
  6. Step 6: Final answer
    x = 418,428.82

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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.