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Finding the Fourth Proportional to 660,779.64, 991,322.28 and 234,292.86

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Solution

The fourth proportional to 660,779.64, 991,322.28 and 234,292.86 is: 351,493.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,779.64 : 991,322.28 = 234,292.86 : x
  2. Step 2: Convert to fraction form
    660,779.64/991,322.28 = 234,292.86/x
  3. Step 3: Cross multiply
    660,779.64x = 991,322.28 × 234,292.86
  4. Step 4: Simplify right side
    660,779.64x = 232,259,732,162.92
  5. Step 5: Solve for x
    x = 232,259,732,162.92/660,779.64
  6. Step 6: Final answer
    x = 351,493.48

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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.