Home / 947,983.48-1,308,221.84-518,263.63

Finding the Fourth Proportional to 947,983.48, 1,308,221.84 and 518,263.63

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Solution

The fourth proportional to 947,983.48, 1,308,221.84 and 518,263.63 is: 715,206.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,983.48 : 1,308,221.84 = 518,263.63 : x
  2. Step 2: Convert to fraction form
    947,983.48/1,308,221.84 = 518,263.63/x
  3. Step 3: Cross multiply
    947,983.48x = 1,308,221.84 × 518,263.63
  4. Step 4: Simplify right side
    947,983.48x = 678,003,799,643.68
  5. Step 5: Solve for x
    x = 678,003,799,643.68/947,983.48
  6. Step 6: Final answer
    x = 715,206.34

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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.