Home / 1,220,311.01-1,683,459.64-767,851.49

Finding the Fourth Proportional to 1,220,311.01, 1,683,459.64 and 767,851.49

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Solution

The fourth proportional to 1,220,311.01, 1,683,459.64 and 767,851.49 is: 1,059,276.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,311.01 : 1,683,459.64 = 767,851.49 : x
  2. Step 2: Convert to fraction form
    1,220,311.01/1,683,459.64 = 767,851.49/x
  3. Step 3: Cross multiply
    1,220,311.01x = 1,683,459.64 × 767,851.49
  4. Step 4: Simplify right side
    1,220,311.01x = 1,292,646,992,928.86
  5. Step 5: Solve for x
    x = 1,292,646,992,928.86/1,220,311.01
  6. Step 6: Final answer
    x = 1,059,276.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.