Home / 684,561.60-1,026,151.20-310,852.80

Finding the Fourth Proportional to 684,561.60, 1,026,151.20 and 310,852.80

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Solution

The fourth proportional to 684,561.60, 1,026,151.20 and 310,852.80 is: 465,965.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,561.60 : 1,026,151.20 = 310,852.80 : x
  2. Step 2: Convert to fraction form
    684,561.60/1,026,151.20 = 310,852.80/x
  3. Step 3: Cross multiply
    684,561.60x = 1,026,151.20 × 310,852.80
  4. Step 4: Simplify right side
    684,561.60x = 318,981,973,743.36
  5. Step 5: Solve for x
    x = 318,981,973,743.36/684,561.60
  6. Step 6: Final answer
    x = 465,965.33

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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.