Home / 947,663.61-1,307,796.71-517,971.57

Finding the Fourth Proportional to 947,663.61, 1,307,796.71 and 517,971.57

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Solution

The fourth proportional to 947,663.61, 1,307,796.71 and 517,971.57 is: 714,812.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,663.61 : 1,307,796.71 = 517,971.57 : x
  2. Step 2: Convert to fraction form
    947,663.61/1,307,796.71 = 517,971.57/x
  3. Step 3: Cross multiply
    947,663.61x = 1,307,796.71 × 517,971.57
  4. Step 4: Simplify right side
    947,663.61x = 677,401,512,529.68
  5. Step 5: Solve for x
    x = 677,401,512,529.68/947,663.61
  6. Step 6: Final answer
    x = 714,812.20

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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.