Home / 2,872,572.36-3,964,148.89-1,583,434.28

Finding the Fourth Proportional to 2,872,572.36, 3,964,148.89 and 1,583,434.28

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Solution

The fourth proportional to 2,872,572.36, 3,964,148.89 and 1,583,434.28 is: 2,185,138.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872,572.36 : 3,964,148.89 = 1,583,434.28 : x
  2. Step 2: Convert to fraction form
    2,872,572.36/3,964,148.89 = 1,583,434.28/x
  3. Step 3: Cross multiply
    2,872,572.36x = 3,964,148.89 × 1,583,434.28
  4. Step 4: Simplify right side
    2,872,572.36x = 6,276,969,243,449.95
  5. Step 5: Solve for x
    x = 6,276,969,243,449.95/2,872,572.36
  6. Step 6: Final answer
    x = 2,185,138.77

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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.