Home / 964,534.40-1,330,289.52-620,409.86

Finding the Fourth Proportional to 964,534.40, 1,330,289.52 and 620,409.86

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Solution

The fourth proportional to 964,534.40, 1,330,289.52 and 620,409.86 is: 855,671.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    964,534.40 : 1,330,289.52 = 620,409.86 : x
  2. Step 2: Convert to fraction form
    964,534.40/1,330,289.52 = 620,409.86/x
  3. Step 3: Cross multiply
    964,534.40x = 1,330,289.52 × 620,409.86
  4. Step 4: Simplify right side
    964,534.40x = 825,324,734,862.67
  5. Step 5: Solve for x
    x = 825,324,734,862.67/964,534.40
  6. Step 6: Final answer
    x = 855,671.64

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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.