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Finding the Fourth Proportional to 419,228.52, 578,445.66 and 249,429.48

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Solution

The fourth proportional to 419,228.52, 578,445.66 and 249,429.48 is: 344,159.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,228.52 : 578,445.66 = 249,429.48 : x
  2. Step 2: Convert to fraction form
    419,228.52/578,445.66 = 249,429.48/x
  3. Step 3: Cross multiply
    419,228.52x = 578,445.66 × 249,429.48
  4. Step 4: Simplify right side
    419,228.52x = 144,281,400,182.06
  5. Step 5: Solve for x
    x = 144,281,400,182.06/419,228.52
  6. Step 6: Final answer
    x = 344,159.31

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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.