Home / 1,080,135.95-1,490,632.90-621,250.64

Finding the Fourth Proportional to 1,080,135.95, 1,490,632.90 and 621,250.64

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Solution

The fourth proportional to 1,080,135.95, 1,490,632.90 and 621,250.64 is: 857,351.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,135.95 : 1,490,632.90 = 621,250.64 : x
  2. Step 2: Convert to fraction form
    1,080,135.95/1,490,632.90 = 621,250.64/x
  3. Step 3: Cross multiply
    1,080,135.95x = 1,490,632.90 × 621,250.64
  4. Step 4: Simplify right side
    1,080,135.95x = 926,056,634,123.77
  5. Step 5: Solve for x
    x = 926,056,634,123.77/1,080,135.95
  6. Step 6: Final answer
    x = 857,351.92

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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.