Home / 809,210.10-1,214,252.55-360,000.30

Finding the Fourth Proportional to 809,210.10, 1,214,252.55 and 360,000.30

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Solution

The fourth proportional to 809,210.10, 1,214,252.55 and 360,000.30 is: 540,195.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,210.10 : 1,214,252.55 = 360,000.30 : x
  2. Step 2: Convert to fraction form
    809,210.10/1,214,252.55 = 360,000.30/x
  3. Step 3: Cross multiply
    809,210.10x = 1,214,252.55 × 360,000.30
  4. Step 4: Simplify right side
    809,210.10x = 437,131,282,275.77
  5. Step 5: Solve for x
    x = 437,131,282,275.77/809,210.10
  6. Step 6: Final answer
    x = 540,195.04

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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.