Home / 878,723.80-1,318,085.70-524,138.20

Finding the Fourth Proportional to 878,723.80, 1,318,085.70 and 524,138.20

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Solution

The fourth proportional to 878,723.80, 1,318,085.70 and 524,138.20 is: 786,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,723.80 : 1,318,085.70 = 524,138.20 : x
  2. Step 2: Convert to fraction form
    878,723.80/1,318,085.70 = 524,138.20/x
  3. Step 3: Cross multiply
    878,723.80x = 1,318,085.70 × 524,138.20
  4. Step 4: Simplify right side
    878,723.80x = 690,859,066,243.74
  5. Step 5: Solve for x
    x = 690,859,066,243.74/878,723.80
  6. Step 6: Final answer
    x = 786,207.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.