Home / 943,420.50-1,301,919.42-513,703.70

Finding the Fourth Proportional to 943,420.50, 1,301,919.42 and 513,703.70

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Solution

The fourth proportional to 943,420.50, 1,301,919.42 and 513,703.70 is: 708,910.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,420.50 : 1,301,919.42 = 513,703.70 : x
  2. Step 2: Convert to fraction form
    943,420.50/1,301,919.42 = 513,703.70/x
  3. Step 3: Cross multiply
    943,420.50x = 1,301,919.42 × 513,703.70
  4. Step 4: Simplify right side
    943,420.50x = 668,800,823,155.85
  5. Step 5: Solve for x
    x = 668,800,823,155.85/943,420.50
  6. Step 6: Final answer
    x = 708,910.63

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Double scale
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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.