Home / 807,539.10-1,211,017.05-408,047.10

Finding the Fourth Proportional to 807,539.10, 1,211,017.05 and 408,047.10

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Solution

The fourth proportional to 807,539.10, 1,211,017.05 and 408,047.10 is: 611,923.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,539.10 : 1,211,017.05 = 408,047.10 : x
  2. Step 2: Convert to fraction form
    807,539.10/1,211,017.05 = 408,047.10/x
  3. Step 3: Cross multiply
    807,539.10x = 1,211,017.05 × 408,047.10
  4. Step 4: Simplify right side
    807,539.10x = 494,151,995,303.06
  5. Step 5: Solve for x
    x = 494,151,995,303.06/807,539.10
  6. Step 6: Final answer
    x = 611,923.31

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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.