Home / 810,005.92-1,117,869.44-465,947.20

Finding the Fourth Proportional to 810,005.92, 1,117,869.44 and 465,947.20

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Solution

The fourth proportional to 810,005.92, 1,117,869.44 and 465,947.20 is: 643,042.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,005.92 : 1,117,869.44 = 465,947.20 : x
  2. Step 2: Convert to fraction form
    810,005.92/1,117,869.44 = 465,947.20/x
  3. Step 3: Cross multiply
    810,005.92x = 1,117,869.44 × 465,947.20
  4. Step 4: Simplify right side
    810,005.92x = 520,868,135,533.57
  5. Step 5: Solve for x
    x = 520,868,135,533.57/810,005.92
  6. Step 6: Final answer
    x = 643,042.38

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1.5x scale

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.