Home / 1,080,030.46-1,490,380.28-644,938.77

Finding the Fourth Proportional to 1,080,030.46, 1,490,380.28 and 644,938.77

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Solution

The fourth proportional to 1,080,030.46, 1,490,380.28 and 644,938.77 is: 889,978.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,030.46 : 1,490,380.28 = 644,938.77 : x
  2. Step 2: Convert to fraction form
    1,080,030.46/1,490,380.28 = 644,938.77/x
  3. Step 3: Cross multiply
    1,080,030.46x = 1,490,380.28 × 644,938.77
  4. Step 4: Simplify right side
    1,080,030.46x = 961,204,024,615.46
  5. Step 5: Solve for x
    x = 961,204,024,615.46/1,080,030.46
  6. Step 6: Final answer
    x = 889,978.63

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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.