Home / 862,376.88-1,190,116.80-480,403.56

Finding the Fourth Proportional to 862,376.88, 1,190,116.80 and 480,403.56

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Solution

The fourth proportional to 862,376.88, 1,190,116.80 and 480,403.56 is: 662,977.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,376.88 : 1,190,116.80 = 480,403.56 : x
  2. Step 2: Convert to fraction form
    862,376.88/1,190,116.80 = 480,403.56/x
  3. Step 3: Cross multiply
    862,376.88x = 1,190,116.80 × 480,403.56
  4. Step 4: Simplify right side
    862,376.88x = 571,736,347,535.81
  5. Step 5: Solve for x
    x = 571,736,347,535.81/862,376.88
  6. Step 6: Final answer
    x = 662,977.36

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1.5x scale

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.