Home / 455,981.07-629,256.35-249,249.75

Finding the Fourth Proportional to 455,981.07, 629,256.35 and 249,249.75

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Solution

The fourth proportional to 455,981.07, 629,256.35 and 249,249.75 is: 343,966.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,981.07 : 629,256.35 = 249,249.75 : x
  2. Step 2: Convert to fraction form
    455,981.07/629,256.35 = 249,249.75/x
  3. Step 3: Cross multiply
    455,981.07x = 629,256.35 × 249,249.75
  4. Step 4: Simplify right side
    455,981.07x = 156,841,987,923.41
  5. Step 5: Solve for x
    x = 156,841,987,923.41/455,981.07
  6. Step 6: Final answer
    x = 343,966.01

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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.