Home / 661,214.48-991,887.44-262,130.72

Finding the Fourth Proportional to 661,214.48, 991,887.44 and 262,130.72

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Solution

The fourth proportional to 661,214.48, 991,887.44 and 262,130.72 is: 393,222.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,214.48 : 991,887.44 = 262,130.72 : x
  2. Step 2: Convert to fraction form
    661,214.48/991,887.44 = 262,130.72/x
  3. Step 3: Cross multiply
    661,214.48x = 991,887.44 × 262,130.72
  4. Step 4: Simplify right side
    661,214.48x = 260,004,168,806.16
  5. Step 5: Solve for x
    x = 260,004,168,806.16/661,214.48
  6. Step 6: Final answer
    x = 393,222.13

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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.