Home / 486,981.10-672,021.02-272,122.93

Finding the Fourth Proportional to 486,981.10, 672,021.02 and 272,122.93

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Solution

The fourth proportional to 486,981.10, 672,021.02 and 272,122.93 is: 375,522.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,981.10 : 672,021.02 = 272,122.93 : x
  2. Step 2: Convert to fraction form
    486,981.10/672,021.02 = 272,122.93/x
  3. Step 3: Cross multiply
    486,981.10x = 672,021.02 × 272,122.93
  4. Step 4: Simplify right side
    486,981.10x = 182,872,328,983.99
  5. Step 5: Solve for x
    x = 182,872,328,983.99/486,981.10
  6. Step 6: Final answer
    x = 375,522.44

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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.