Home / 1,308,688.20-1,961,574.30-509,704.20

Finding the Fourth Proportional to 1,308,688.20, 1,961,574.30 and 509,704.20

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Solution

The fourth proportional to 1,308,688.20, 1,961,574.30 and 509,704.20 is: 763,988.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,688.20 : 1,961,574.30 = 509,704.20 : x
  2. Step 2: Convert to fraction form
    1,308,688.20/1,961,574.30 = 509,704.20/x
  3. Step 3: Cross multiply
    1,308,688.20x = 1,961,574.30 × 509,704.20
  4. Step 4: Simplify right side
    1,308,688.20x = 999,822,659,322.06
  5. Step 5: Solve for x
    x = 999,822,659,322.06/1,308,688.20
  6. Step 6: Final answer
    x = 763,988.44

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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.