Home / 690,984.54-1,036,124.46-518,631.12

Finding the Fourth Proportional to 690,984.54, 1,036,124.46 and 518,631.12

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Solution

The fourth proportional to 690,984.54, 1,036,124.46 and 518,631.12 is: 777,682.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,984.54 : 1,036,124.46 = 518,631.12 : x
  2. Step 2: Convert to fraction form
    690,984.54/1,036,124.46 = 518,631.12/x
  3. Step 3: Cross multiply
    690,984.54x = 1,036,124.46 × 518,631.12
  4. Step 4: Simplify right side
    690,984.54x = 537,366,389,149.20
  5. Step 5: Solve for x
    x = 537,366,389,149.20/690,984.54
  6. Step 6: Final answer
    x = 777,682.22

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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.