Home / 1,154,007.80-1,731,011.70-680,919.80

Finding the Fourth Proportional to 1,154,007.80, 1,731,011.70 and 680,919.80

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Solution

The fourth proportional to 1,154,007.80, 1,731,011.70 and 680,919.80 is: 1,021,379.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154,007.80 : 1,731,011.70 = 680,919.80 : x
  2. Step 2: Convert to fraction form
    1,154,007.80/1,731,011.70 = 680,919.80/x
  3. Step 3: Cross multiply
    1,154,007.80x = 1,731,011.70 × 680,919.80
  4. Step 4: Simplify right side
    1,154,007.80x = 1,178,680,140,561.66
  5. Step 5: Solve for x
    x = 1,178,680,140,561.66/1,154,007.80
  6. Step 6: Final answer
    x = 1,021,379.70

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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.