Home / 1,273,741.28-1,909,037.28-642,835.52

Finding the Fourth Proportional to 1,273,741.28, 1,909,037.28 and 642,835.52

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Solution

The fourth proportional to 1,273,741.28, 1,909,037.28 and 642,835.52 is: 963,458.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,741.28 : 1,909,037.28 = 642,835.52 : x
  2. Step 2: Convert to fraction form
    1,273,741.28/1,909,037.28 = 642,835.52/x
  3. Step 3: Cross multiply
    1,273,741.28x = 1,909,037.28 × 642,835.52
  4. Step 4: Simplify right side
    1,273,741.28x = 1,227,196,972,588.19
  5. Step 5: Solve for x
    x = 1,227,196,972,588.19/1,273,741.28
  6. Step 6: Final answer
    x = 963,458.59

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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.