Home / 987,287.72-1,362,457.05-534,578.72

Finding the Fourth Proportional to 987,287.72, 1,362,457.05 and 534,578.72

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Solution

The fourth proportional to 987,287.72, 1,362,457.05 and 534,578.72 is: 737,718.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,287.72 : 1,362,457.05 = 534,578.72 : x
  2. Step 2: Convert to fraction form
    987,287.72/1,362,457.05 = 534,578.72/x
  3. Step 3: Cross multiply
    987,287.72x = 1,362,457.05 × 534,578.72
  4. Step 4: Simplify right side
    987,287.72x = 728,340,539,031.69
  5. Step 5: Solve for x
    x = 728,340,539,031.69/987,287.72
  6. Step 6: Final answer
    x = 737,718.63

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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.