Home / 782,384.40-1,079,947.08-460,078.92

Finding the Fourth Proportional to 782,384.40, 1,079,947.08 and 460,078.92

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Solution

The fourth proportional to 782,384.40, 1,079,947.08 and 460,078.92 is: 635,059.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,384.40 : 1,079,947.08 = 460,078.92 : x
  2. Step 2: Convert to fraction form
    782,384.40/1,079,947.08 = 460,078.92/x
  3. Step 3: Cross multiply
    782,384.40x = 1,079,947.08 × 460,078.92
  4. Step 4: Simplify right side
    782,384.40x = 496,860,886,223.55
  5. Step 5: Solve for x
    x = 496,860,886,223.55/782,384.40
  6. Step 6: Final answer
    x = 635,059.81

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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.