Home / 661,880.09-991,947.99-262,303.04

Finding the Fourth Proportional to 661,880.09, 991,947.99 and 262,303.04

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Solution

The fourth proportional to 661,880.09, 991,947.99 and 262,303.04 is: 393,108.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,880.09 : 991,947.99 = 262,303.04 : x
  2. Step 2: Convert to fraction form
    661,880.09/991,947.99 = 262,303.04/x
  3. Step 3: Cross multiply
    661,880.09x = 991,947.99 × 262,303.04
  4. Step 4: Simplify right side
    661,880.09x = 260,190,973,298.89
  5. Step 5: Solve for x
    x = 260,190,973,298.89/661,880.09
  6. Step 6: Final answer
    x = 393,108.93

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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.