Home / 707,911.20-1,061,866.80-209,275.20

Finding the Fourth Proportional to 707,911.20, 1,061,866.80 and 209,275.20

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Solution

The fourth proportional to 707,911.20, 1,061,866.80 and 209,275.20 is: 313,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,911.20 : 1,061,866.80 = 209,275.20 : x
  2. Step 2: Convert to fraction form
    707,911.20/1,061,866.80 = 209,275.20/x
  3. Step 3: Cross multiply
    707,911.20x = 1,061,866.80 × 209,275.20
  4. Step 4: Simplify right side
    707,911.20x = 222,222,386,943.36
  5. Step 5: Solve for x
    x = 222,222,386,943.36/707,911.20
  6. Step 6: Final answer
    x = 313,912.80

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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.