Home / 947,645.10-1,307,730.78-517,928.28

Finding the Fourth Proportional to 947,645.10, 1,307,730.78 and 517,928.28

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Solution

The fourth proportional to 947,645.10, 1,307,730.78 and 517,928.28 is: 714,730.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,645.10 : 1,307,730.78 = 517,928.28 : x
  2. Step 2: Convert to fraction form
    947,645.10/1,307,730.78 = 517,928.28/x
  3. Step 3: Cross multiply
    947,645.10x = 1,307,730.78 × 517,928.28
  4. Step 4: Simplify right side
    947,645.10x = 677,310,753,588.46
  5. Step 5: Solve for x
    x = 677,310,753,588.46/947,645.10
  6. Step 6: Final answer
    x = 714,730.39

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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.