Home / 486,322.22-671,122.10-282,423.27

Finding the Fourth Proportional to 486,322.22, 671,122.10 and 282,423.27

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Solution

The fourth proportional to 486,322.22, 671,122.10 and 282,423.27 is: 389,742.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,322.22 : 671,122.10 = 282,423.27 : x
  2. Step 2: Convert to fraction form
    486,322.22/671,122.10 = 282,423.27/x
  3. Step 3: Cross multiply
    486,322.22x = 671,122.10 × 282,423.27
  4. Step 4: Simplify right side
    486,322.22x = 189,540,496,639.15
  5. Step 5: Solve for x
    x = 189,540,496,639.15/486,322.22
  6. Step 6: Final answer
    x = 389,742.62

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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.