Home / 1,377,025.80-2,065,538.70-430,686.60

Finding the Fourth Proportional to 1,377,025.80, 2,065,538.70 and 430,686.60

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Solution

The fourth proportional to 1,377,025.80, 2,065,538.70 and 430,686.60 is: 646,029.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,025.80 : 2,065,538.70 = 430,686.60 : x
  2. Step 2: Convert to fraction form
    1,377,025.80/2,065,538.70 = 430,686.60/x
  3. Step 3: Cross multiply
    1,377,025.80x = 2,065,538.70 × 430,686.60
  4. Step 4: Simplify right side
    1,377,025.80x = 889,599,839,871.42
  5. Step 5: Solve for x
    x = 889,599,839,871.42/1,377,025.80
  6. Step 6: Final answer
    x = 646,029.90

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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.