Home / 1,298,963.45-1,947,946.89-445,876.13

Finding the Fourth Proportional to 1,298,963.45, 1,947,946.89 and 445,876.13

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Solution

The fourth proportional to 1,298,963.45, 1,947,946.89 and 445,876.13 is: 668,643.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,963.45 : 1,947,946.89 = 445,876.13 : x
  2. Step 2: Convert to fraction form
    1,298,963.45/1,947,946.89 = 445,876.13/x
  3. Step 3: Cross multiply
    1,298,963.45x = 1,947,946.89 × 445,876.13
  4. Step 4: Simplify right side
    1,298,963.45x = 868,543,027,300.64
  5. Step 5: Solve for x
    x = 868,543,027,300.64/1,298,963.45
  6. Step 6: Final answer
    x = 668,643.16

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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.