Home / 772,615.86-1,159,256.79-417,879.60

Finding the Fourth Proportional to 772,615.86, 1,159,256.79 and 417,879.60

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Solution

The fourth proportional to 772,615.86, 1,159,256.79 and 417,879.60 is: 626,999.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,615.86 : 1,159,256.79 = 417,879.60 : x
  2. Step 2: Convert to fraction form
    772,615.86/1,159,256.79 = 417,879.60/x
  3. Step 3: Cross multiply
    772,615.86x = 1,159,256.79 × 417,879.60
  4. Step 4: Simplify right side
    772,615.86x = 484,429,755,816.80
  5. Step 5: Solve for x
    x = 484,429,755,816.80/772,615.86
  6. Step 6: Final answer
    x = 626,999.50

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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.