Home / 1,379,981.80-2,069,972.70-433,448.20

Finding the Fourth Proportional to 1,379,981.80, 2,069,972.70 and 433,448.20

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Solution

The fourth proportional to 1,379,981.80, 2,069,972.70 and 433,448.20 is: 650,172.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,981.80 : 2,069,972.70 = 433,448.20 : x
  2. Step 2: Convert to fraction form
    1,379,981.80/2,069,972.70 = 433,448.20/x
  3. Step 3: Cross multiply
    1,379,981.80x = 2,069,972.70 × 433,448.20
  4. Step 4: Simplify right side
    1,379,981.80x = 897,225,940,864.14
  5. Step 5: Solve for x
    x = 897,225,940,864.14/1,379,981.80
  6. Step 6: Final answer
    x = 650,172.30

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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.