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Finding the Fourth Proportional to 513,899.26, 708,712.40 and 441,279.32

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Solution

The fourth proportional to 513,899.26, 708,712.40 and 441,279.32 is: 608,563.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,899.26 : 708,712.40 = 441,279.32 : x
  2. Step 2: Convert to fraction form
    513,899.26/708,712.40 = 441,279.32/x
  3. Step 3: Cross multiply
    513,899.26x = 708,712.40 × 441,279.32
  4. Step 4: Simplify right side
    513,899.26x = 312,740,125,947.57
  5. Step 5: Solve for x
    x = 312,740,125,947.57/513,899.26
  6. Step 6: Final answer
    x = 608,563.10

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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.