Home / 947,105.55-1,306,989.18-517,374.63

Finding the Fourth Proportional to 947,105.55, 1,306,989.18 and 517,374.63

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Solution

The fourth proportional to 947,105.55, 1,306,989.18 and 517,374.63 is: 713,967.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,105.55 : 1,306,989.18 = 517,374.63 : x
  2. Step 2: Convert to fraction form
    947,105.55/1,306,989.18 = 517,374.63/x
  3. Step 3: Cross multiply
    947,105.55x = 1,306,989.18 × 517,374.63
  4. Step 4: Simplify right side
    947,105.55x = 676,203,043,416.50
  5. Step 5: Solve for x
    x = 676,203,043,416.50/947,105.55
  6. Step 6: Final answer
    x = 713,967.99

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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.