Home / 1,190,485.28-1,642,881.76-646,631.70

Finding the Fourth Proportional to 1,190,485.28, 1,642,881.76 and 646,631.70

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Solution

The fourth proportional to 1,190,485.28, 1,642,881.76 and 646,631.70 is: 892,358.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,485.28 : 1,642,881.76 = 646,631.70 : x
  2. Step 2: Convert to fraction form
    1,190,485.28/1,642,881.76 = 646,631.70/x
  3. Step 3: Cross multiply
    1,190,485.28x = 1,642,881.76 × 646,631.70
  4. Step 4: Simplify right side
    1,190,485.28x = 1,062,339,425,367.79
  5. Step 5: Solve for x
    x = 1,062,339,425,367.79/1,190,485.28
  6. Step 6: Final answer
    x = 892,358.30

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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.