Home / 1,041,829.20-1,562,743.80-642,920.40

Finding the Fourth Proportional to 1,041,829.20, 1,562,743.80 and 642,920.40

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Solution

The fourth proportional to 1,041,829.20, 1,562,743.80 and 642,920.40 is: 964,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041,829.20 : 1,562,743.80 = 642,920.40 : x
  2. Step 2: Convert to fraction form
    1,041,829.20/1,562,743.80 = 642,920.40/x
  3. Step 3: Cross multiply
    1,041,829.20x = 1,562,743.80 × 642,920.40
  4. Step 4: Simplify right side
    1,041,829.20x = 1,004,719,868,993.52
  5. Step 5: Solve for x
    x = 1,004,719,868,993.52/1,041,829.20
  6. Step 6: Final answer
    x = 964,380.60

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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.