Home / 711,407.50-1,067,113.07-290,683.37

Finding the Fourth Proportional to 711,407.50, 1,067,113.07 and 290,683.37

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Solution

The fourth proportional to 711,407.50, 1,067,113.07 and 290,683.37 is: 436,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,407.50 : 1,067,113.07 = 290,683.37 : x
  2. Step 2: Convert to fraction form
    711,407.50/1,067,113.07 = 290,683.37/x
  3. Step 3: Cross multiply
    711,407.50x = 1,067,113.07 × 290,683.37
  4. Step 4: Simplify right side
    711,407.50x = 310,192,023,358.65
  5. Step 5: Solve for x
    x = 310,192,023,358.65/711,407.50
  6. Step 6: Final answer
    x = 436,025.80

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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.