Home / 486,143.10-670,607.91-284,900.22

Finding the Fourth Proportional to 486,143.10, 670,607.91 and 284,900.22

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Solution

The fourth proportional to 486,143.10, 670,607.91 and 284,900.22 is: 393,004.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,143.10 : 670,607.91 = 284,900.22 : x
  2. Step 2: Convert to fraction form
    486,143.10/670,607.91 = 284,900.22/x
  3. Step 3: Cross multiply
    486,143.10x = 670,607.91 × 284,900.22
  4. Step 4: Simplify right side
    486,143.10x = 191,056,341,092.74
  5. Step 5: Solve for x
    x = 191,056,341,092.74/486,143.10
  6. Step 6: Final answer
    x = 393,004.33

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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.