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Finding the Fourth Proportional to 486,070.67, 670,670.15 and 282,003.39

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Solution

The fourth proportional to 486,070.67, 670,670.15 and 282,003.39 is: 389,102.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,070.67 : 670,670.15 = 282,003.39 : x
  2. Step 2: Convert to fraction form
    486,070.67/670,670.15 = 282,003.39/x
  3. Step 3: Cross multiply
    486,070.67x = 670,670.15 × 282,003.39
  4. Step 4: Simplify right side
    486,070.67x = 189,131,254,461.79
  5. Step 5: Solve for x
    x = 189,131,254,461.79/486,070.67
  6. Step 6: Final answer
    x = 389,102.38

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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.