Home / 985,200.21-1,359,653.31-549,754.47

Finding the Fourth Proportional to 985,200.21, 1,359,653.31 and 549,754.47

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Solution

The fourth proportional to 985,200.21, 1,359,653.31 and 549,754.47 is: 758,704.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,200.21 : 1,359,653.31 = 549,754.47 : x
  2. Step 2: Convert to fraction form
    985,200.21/1,359,653.31 = 549,754.47/x
  3. Step 3: Cross multiply
    985,200.21x = 1,359,653.31 × 549,754.47
  4. Step 4: Simplify right side
    985,200.21x = 747,475,484,822.80
  5. Step 5: Solve for x
    x = 747,475,484,822.80/985,200.21
  6. Step 6: Final answer
    x = 758,704.15

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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.