Home / 947,985.52-1,308,252-518,257.12

Finding the Fourth Proportional to 947,985.52, 1,308,252 and 518,257.12

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Solution

The fourth proportional to 947,985.52, 1,308,252 and 518,257.12 is: 715,212.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,985.52 : 1,308,252 = 518,257.12 : x
  2. Step 2: Convert to fraction form
    947,985.52/1,308,252 = 518,257.12/x
  3. Step 3: Cross multiply
    947,985.52x = 1,308,252 × 518,257.12
  4. Step 4: Simplify right side
    947,985.52x = 678,010,913,754.24
  5. Step 5: Solve for x
    x = 678,010,913,754.24/947,985.52
  6. Step 6: Final answer
    x = 715,212.31

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Half scale
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Double scale
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Similar ratio
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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.