Home / 1,578,038.40-2,365,891.20-868,867.20

Finding the Fourth Proportional to 1,578,038.40, 2,365,891.20 and 868,867.20

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Solution

The fourth proportional to 1,578,038.40, 2,365,891.20 and 868,867.20 is: 1,302,658.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,038.40 : 2,365,891.20 = 868,867.20 : x
  2. Step 2: Convert to fraction form
    1,578,038.40/2,365,891.20 = 868,867.20/x
  3. Step 3: Cross multiply
    1,578,038.40x = 2,365,891.20 × 868,867.20
  4. Step 4: Simplify right side
    1,578,038.40x = 2,055,645,262,448.64
  5. Step 5: Solve for x
    x = 2,055,645,262,448.64/1,578,038.40
  6. Step 6: Final answer
    x = 1,302,658.58

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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.