Home / 807,553.60-1,209,969.60-638,425.60

Finding the Fourth Proportional to 807,553.60, 1,209,969.60 and 638,425.60

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Solution

The fourth proportional to 807,553.60, 1,209,969.60 and 638,425.60 is: 956,562.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,553.60 : 1,209,969.60 = 638,425.60 : x
  2. Step 2: Convert to fraction form
    807,553.60/1,209,969.60 = 638,425.60/x
  3. Step 3: Cross multiply
    807,553.60x = 1,209,969.60 × 638,425.60
  4. Step 4: Simplify right side
    807,553.60x = 772,475,567,861.76
  5. Step 5: Solve for x
    x = 772,475,567,861.76/807,553.60
  6. Step 6: Final answer
    x = 956,562.60

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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.