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Finding the Fourth Proportional to 513,303.72, 708,363.60 and 283,876.44

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Solution

The fourth proportional to 513,303.72, 708,363.60 and 283,876.44 is: 391,751.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,303.72 : 708,363.60 = 283,876.44 : x
  2. Step 2: Convert to fraction form
    513,303.72/708,363.60 = 283,876.44/x
  3. Step 3: Cross multiply
    513,303.72x = 708,363.60 × 283,876.44
  4. Step 4: Simplify right side
    513,303.72x = 201,087,736,993.58
  5. Step 5: Solve for x
    x = 201,087,736,993.58/513,303.72
  6. Step 6: Final answer
    x = 391,751.96

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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.