Home / 776,655.36-1,164,990.72-215,692.80

Finding the Fourth Proportional to 776,655.36, 1,164,990.72 and 215,692.80

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Solution

The fourth proportional to 776,655.36, 1,164,990.72 and 215,692.80 is: 323,541.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,655.36 : 1,164,990.72 = 215,692.80 : x
  2. Step 2: Convert to fraction form
    776,655.36/1,164,990.72 = 215,692.80/x
  3. Step 3: Cross multiply
    776,655.36x = 1,164,990.72 × 215,692.80
  4. Step 4: Simplify right side
    776,655.36x = 251,280,110,370.82
  5. Step 5: Solve for x
    x = 251,280,110,370.82/776,655.36
  6. Step 6: Final answer
    x = 323,541.33

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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.