Home / 2,867,218.40-3,956,731.40-1,578,031.12

Finding the Fourth Proportional to 2,867,218.40, 3,956,731.40 and 1,578,031.12

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Solution

The fourth proportional to 2,867,218.40, 3,956,731.40 and 1,578,031.12 is: 2,177,666.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867,218.40 : 3,956,731.40 = 1,578,031.12 : x
  2. Step 2: Convert to fraction form
    2,867,218.40/3,956,731.40 = 1,578,031.12/x
  3. Step 3: Cross multiply
    2,867,218.40x = 3,956,731.40 × 1,578,031.12
  4. Step 4: Simplify right side
    2,867,218.40x = 6,243,845,282,681.17
  5. Step 5: Solve for x
    x = 6,243,845,282,681.17/2,867,218.40
  6. Step 6: Final answer
    x = 2,177,666.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.