Home / 905,643.18-1,358,511.21-231,730.20

Finding the Fourth Proportional to 905,643.18, 1,358,511.21 and 231,730.20

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Solution

The fourth proportional to 905,643.18, 1,358,511.21 and 231,730.20 is: 347,607.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,643.18 : 1,358,511.21 = 231,730.20 : x
  2. Step 2: Convert to fraction form
    905,643.18/1,358,511.21 = 231,730.20/x
  3. Step 3: Cross multiply
    905,643.18x = 1,358,511.21 × 231,730.20
  4. Step 4: Simplify right side
    905,643.18x = 314,808,074,395.54
  5. Step 5: Solve for x
    x = 314,808,074,395.54/905,643.18
  6. Step 6: Final answer
    x = 347,607.18

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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.