Home / 947,620.12-1,307,715.87-517,900.12

Finding the Fourth Proportional to 947,620.12, 1,307,715.87 and 517,900.12

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Solution

The fourth proportional to 947,620.12, 1,307,715.87 and 517,900.12 is: 714,702.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,620.12 : 1,307,715.87 = 517,900.12 : x
  2. Step 2: Convert to fraction form
    947,620.12/1,307,715.87 = 517,900.12/x
  3. Step 3: Cross multiply
    947,620.12x = 1,307,715.87 × 517,900.12
  4. Step 4: Simplify right side
    947,620.12x = 677,266,205,998.90
  5. Step 5: Solve for x
    x = 677,266,205,998.90/947,620.12
  6. Step 6: Final answer
    x = 714,702.22

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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.