Home / 842,913.70-1,264,370.55-488,619.70

Finding the Fourth Proportional to 842,913.70, 1,264,370.55 and 488,619.70

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Solution

The fourth proportional to 842,913.70, 1,264,370.55 and 488,619.70 is: 732,929.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,913.70 : 1,264,370.55 = 488,619.70 : x
  2. Step 2: Convert to fraction form
    842,913.70/1,264,370.55 = 488,619.70/x
  3. Step 3: Cross multiply
    842,913.70x = 1,264,370.55 × 488,619.70
  4. Step 4: Simplify right side
    842,913.70x = 617,796,358,829.84
  5. Step 5: Solve for x
    x = 617,796,358,829.84/842,913.70
  6. Step 6: Final answer
    x = 732,929.55

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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.