Home / 643,038.56-964,773.93-451,113.02

Finding the Fourth Proportional to 643,038.56, 964,773.93 and 451,113.02

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Solution

The fourth proportional to 643,038.56, 964,773.93 and 451,113.02 is: 676,821.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,038.56 : 964,773.93 = 451,113.02 : x
  2. Step 2: Convert to fraction form
    643,038.56/964,773.93 = 451,113.02/x
  3. Step 3: Cross multiply
    643,038.56x = 964,773.93 × 451,113.02
  4. Step 4: Simplify right side
    643,038.56x = 435,222,081,179.57
  5. Step 5: Solve for x
    x = 435,222,081,179.57/643,038.56
  6. Step 6: Final answer
    x = 676,821.12

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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.