Home / 991,424.76-1,485,918.90-458,224.44

Finding the Fourth Proportional to 991,424.76, 1,485,918.90 and 458,224.44

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Solution

The fourth proportional to 991,424.76, 1,485,918.90 and 458,224.44 is: 686,773.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,424.76 : 1,485,918.90 = 458,224.44 : x
  2. Step 2: Convert to fraction form
    991,424.76/1,485,918.90 = 458,224.44/x
  3. Step 3: Cross multiply
    991,424.76x = 1,485,918.90 × 458,224.44
  4. Step 4: Simplify right side
    991,424.76x = 680,884,355,837.92
  5. Step 5: Solve for x
    x = 680,884,355,837.92/991,424.76
  6. Step 6: Final answer
    x = 686,773.60

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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.