Home / 835,280.80-1,252,921.20-481,386.40

Finding the Fourth Proportional to 835,280.80, 1,252,921.20 and 481,386.40

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Solution

The fourth proportional to 835,280.80, 1,252,921.20 and 481,386.40 is: 722,079.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,280.80 : 1,252,921.20 = 481,386.40 : x
  2. Step 2: Convert to fraction form
    835,280.80/1,252,921.20 = 481,386.40/x
  3. Step 3: Cross multiply
    835,280.80x = 1,252,921.20 × 481,386.40
  4. Step 4: Simplify right side
    835,280.80x = 603,139,225,951.68
  5. Step 5: Solve for x
    x = 603,139,225,951.68/835,280.80
  6. Step 6: Final answer
    x = 722,079.60

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1.5x scale

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.