Home / 1,820,728.80-2,734,045.65-1,318,812.30

Finding the Fourth Proportional to 1,820,728.80, 2,734,045.65 and 1,318,812.30

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Solution

The fourth proportional to 1,820,728.80, 2,734,045.65 and 1,318,812.30 is: 1,980,357.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,728.80 : 2,734,045.65 = 1,318,812.30 : x
  2. Step 2: Convert to fraction form
    1,820,728.80/2,734,045.65 = 1,318,812.30/x
  3. Step 3: Cross multiply
    1,820,728.80x = 2,734,045.65 × 1,318,812.30
  4. Step 4: Simplify right side
    1,820,728.80x = 3,605,693,031,981.50
  5. Step 5: Solve for x
    x = 3,605,693,031,981.50/1,820,728.80
  6. Step 6: Final answer
    x = 1,980,357.00

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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.