Home / 661,947.10-992,434.65-262,390.30

Finding the Fourth Proportional to 661,947.10, 992,434.65 and 262,390.30

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Solution

The fourth proportional to 661,947.10, 992,434.65 and 262,390.30 is: 393,392.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,947.10 : 992,434.65 = 262,390.30 : x
  2. Step 2: Convert to fraction form
    661,947.10/992,434.65 = 262,390.30/x
  3. Step 3: Cross multiply
    661,947.10x = 992,434.65 × 262,390.30
  4. Step 4: Simplify right side
    661,947.10x = 260,405,225,543.90
  5. Step 5: Solve for x
    x = 260,405,225,543.90/661,947.10
  6. Step 6: Final answer
    x = 393,392.80

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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.