Home / 455,979.90-629,254.72-249,248.56

Finding the Fourth Proportional to 455,979.90, 629,254.72 and 249,248.56

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Solution

The fourth proportional to 455,979.90, 629,254.72 and 249,248.56 is: 343,964.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,979.90 : 629,254.72 = 249,248.56 : x
  2. Step 2: Convert to fraction form
    455,979.90/629,254.72 = 249,248.56/x
  3. Step 3: Cross multiply
    455,979.90x = 629,254.72 × 249,248.56
  4. Step 4: Simplify right side
    455,979.90x = 156,840,832,833.20
  5. Step 5: Solve for x
    x = 156,840,832,833.20/455,979.90
  6. Step 6: Final answer
    x = 343,964.36

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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.