Home / 987,897.69-1,363,296.83-535,189.77

Finding the Fourth Proportional to 987,897.69, 1,363,296.83 and 535,189.77

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Solution

The fourth proportional to 987,897.69, 1,363,296.83 and 535,189.77 is: 738,560.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,897.69 : 1,363,296.83 = 535,189.77 : x
  2. Step 2: Convert to fraction form
    987,897.69/1,363,296.83 = 535,189.77/x
  3. Step 3: Cross multiply
    987,897.69x = 1,363,296.83 × 535,189.77
  4. Step 4: Simplify right side
    987,897.69x = 729,622,514,213.48
  5. Step 5: Solve for x
    x = 729,622,514,213.48/987,897.69
  6. Step 6: Final answer
    x = 738,560.81

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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.