Home / 486,116.12-670,981.04-282,212.84

Finding the Fourth Proportional to 486,116.12, 670,981.04 and 282,212.84

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Solution

The fourth proportional to 486,116.12, 670,981.04 and 282,212.84 is: 389,535.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,116.12 : 670,981.04 = 282,212.84 : x
  2. Step 2: Convert to fraction form
    486,116.12/670,981.04 = 282,212.84/x
  3. Step 3: Cross multiply
    486,116.12x = 670,981.04 × 282,212.84
  4. Step 4: Simplify right side
    486,116.12x = 189,359,464,884.55
  5. Step 5: Solve for x
    x = 189,359,464,884.55/486,116.12
  6. Step 6: Final answer
    x = 389,535.46

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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.