Home / 1,148,415.30-1,584,797.54-639,117.68

Finding the Fourth Proportional to 1,148,415.30, 1,584,797.54 and 639,117.68

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Solution

The fourth proportional to 1,148,415.30, 1,584,797.54 and 639,117.68 is: 881,973.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,415.30 : 1,584,797.54 = 639,117.68 : x
  2. Step 2: Convert to fraction form
    1,148,415.30/1,584,797.54 = 639,117.68/x
  3. Step 3: Cross multiply
    1,148,415.30x = 1,584,797.54 × 639,117.68
  4. Step 4: Simplify right side
    1,148,415.30x = 1,012,872,115,914.93
  5. Step 5: Solve for x
    x = 1,012,872,115,914.93/1,148,415.30
  6. Step 6: Final answer
    x = 881,973.72

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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.