Home / 777,726.80-1,166,590.20-578,661.20

Finding the Fourth Proportional to 777,726.80, 1,166,590.20 and 578,661.20

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Solution

The fourth proportional to 777,726.80, 1,166,590.20 and 578,661.20 is: 867,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,726.80 : 1,166,590.20 = 578,661.20 : x
  2. Step 2: Convert to fraction form
    777,726.80/1,166,590.20 = 578,661.20/x
  3. Step 3: Cross multiply
    777,726.80x = 1,166,590.20 × 578,661.20
  4. Step 4: Simplify right side
    777,726.80x = 675,060,485,040.24
  5. Step 5: Solve for x
    x = 675,060,485,040.24/777,726.80
  6. Step 6: Final answer
    x = 867,991.80

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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.