Home / 1,148,519.92-1,584,941.52-639,222.40

Finding the Fourth Proportional to 1,148,519.92, 1,584,941.52 and 639,222.40

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Solution

The fourth proportional to 1,148,519.92, 1,584,941.52 and 639,222.40 is: 882,118.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,519.92 : 1,584,941.52 = 639,222.40 : x
  2. Step 2: Convert to fraction form
    1,148,519.92/1,584,941.52 = 639,222.40/x
  3. Step 3: Cross multiply
    1,148,519.92x = 1,584,941.52 × 639,222.40
  4. Step 4: Simplify right side
    1,148,519.92x = 1,013,130,122,274.05
  5. Step 5: Solve for x
    x = 1,013,130,122,274.05/1,148,519.92
  6. Step 6: Final answer
    x = 882,118.02

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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.