Home / 486,354.37-671,310.18-282,451.45

Finding the Fourth Proportional to 486,354.37, 671,310.18 and 282,451.45

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Solution

The fourth proportional to 486,354.37, 671,310.18 and 282,451.45 is: 389,864.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,354.37 : 671,310.18 = 282,451.45 : x
  2. Step 2: Convert to fraction form
    486,354.37/671,310.18 = 282,451.45/x
  3. Step 3: Cross multiply
    486,354.37x = 671,310.18 × 282,451.45
  4. Step 4: Simplify right side
    486,354.37x = 189,612,533,740.76
  5. Step 5: Solve for x
    x = 189,612,533,740.76/486,354.37
  6. Step 6: Final answer
    x = 389,864.97

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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.