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Finding the Fourth Proportional to 515,235.96, 710,891.10 and 297,391.32

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Solution

The fourth proportional to 515,235.96, 710,891.10 and 297,391.32 is: 410,322.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,235.96 : 710,891.10 = 297,391.32 : x
  2. Step 2: Convert to fraction form
    515,235.96/710,891.10 = 297,391.32/x
  3. Step 3: Cross multiply
    515,235.96x = 710,891.10 × 297,391.32
  4. Step 4: Simplify right side
    515,235.96x = 211,412,842,605.25
  5. Step 5: Solve for x
    x = 211,412,842,605.25/515,235.96
  6. Step 6: Final answer
    x = 410,322.37

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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.