Home / 772,124.80-1,158,187.20-661,532.80

Finding the Fourth Proportional to 772,124.80, 1,158,187.20 and 661,532.80

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Solution

The fourth proportional to 772,124.80, 1,158,187.20 and 661,532.80 is: 992,299.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,124.80 : 1,158,187.20 = 661,532.80 : x
  2. Step 2: Convert to fraction form
    772,124.80/1,158,187.20 = 661,532.80/x
  3. Step 3: Cross multiply
    772,124.80x = 1,158,187.20 × 661,532.80
  4. Step 4: Simplify right side
    772,124.80x = 766,178,821,340.16
  5. Step 5: Solve for x
    x = 766,178,821,340.16/772,124.80
  6. Step 6: Final answer
    x = 992,299.20

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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.