Home / 1,578,167.20-2,368,222.80-680,039.20

Finding the Fourth Proportional to 1,578,167.20, 2,368,222.80 and 680,039.20

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Solution

The fourth proportional to 1,578,167.20, 2,368,222.80 and 680,039.20 is: 1,020,477.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,167.20 : 2,368,222.80 = 680,039.20 : x
  2. Step 2: Convert to fraction form
    1,578,167.20/2,368,222.80 = 680,039.20/x
  3. Step 3: Cross multiply
    1,578,167.20x = 2,368,222.80 × 680,039.20
  4. Step 4: Simplify right side
    1,578,167.20x = 1,610,484,338,333.76
  5. Step 5: Solve for x
    x = 1,610,484,338,333.76/1,578,167.20
  6. Step 6: Final answer
    x = 1,020,477.64

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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.