Home / 922,380.21-1,272,829.89-535,165.64

Finding the Fourth Proportional to 922,380.21, 1,272,829.89 and 535,165.64

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Solution

The fourth proportional to 922,380.21, 1,272,829.89 and 535,165.64 is: 738,496.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,380.21 : 1,272,829.89 = 535,165.64 : x
  2. Step 2: Convert to fraction form
    922,380.21/1,272,829.89 = 535,165.64/x
  3. Step 3: Cross multiply
    922,380.21x = 1,272,829.89 × 535,165.64
  4. Step 4: Simplify right side
    922,380.21x = 681,174,817,711.95
  5. Step 5: Solve for x
    x = 681,174,817,711.95/922,380.21
  6. Step 6: Final answer
    x = 738,496.78

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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.