Home / 455,981.48-629,256.42-249,254.09

Finding the Fourth Proportional to 455,981.48, 629,256.42 and 249,254.09

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Solution

The fourth proportional to 455,981.48, 629,256.42 and 249,254.09 is: 343,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,981.48 : 629,256.42 = 249,254.09 : x
  2. Step 2: Convert to fraction form
    455,981.48/629,256.42 = 249,254.09/x
  3. Step 3: Cross multiply
    455,981.48x = 629,256.42 × 249,254.09
  4. Step 4: Simplify right side
    455,981.48x = 156,844,736,343.76
  5. Step 5: Solve for x
    x = 156,844,736,343.76/455,981.48
  6. Step 6: Final answer
    x = 343,971.73

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1.5x scale

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.