Home / 807,585.60-1,211,378.40-618,628.80

Finding the Fourth Proportional to 807,585.60, 1,211,378.40 and 618,628.80

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Solution

The fourth proportional to 807,585.60, 1,211,378.40 and 618,628.80 is: 927,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,585.60 : 1,211,378.40 = 618,628.80 : x
  2. Step 2: Convert to fraction form
    807,585.60/1,211,378.40 = 618,628.80/x
  3. Step 3: Cross multiply
    807,585.60x = 1,211,378.40 × 618,628.80
  4. Step 4: Simplify right side
    807,585.60x = 749,393,565,937.92
  5. Step 5: Solve for x
    x = 749,393,565,937.92/807,585.60
  6. Step 6: Final answer
    x = 927,943.20

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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.