Home / 947,102.55-1,306,985.04-517,371.63

Finding the Fourth Proportional to 947,102.55, 1,306,985.04 and 517,371.63

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Solution

The fourth proportional to 947,102.55, 1,306,985.04 and 517,371.63 is: 713,963.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,102.55 : 1,306,985.04 = 517,371.63 : x
  2. Step 2: Convert to fraction form
    947,102.55/1,306,985.04 = 517,371.63/x
  3. Step 3: Cross multiply
    947,102.55x = 1,306,985.04 × 517,371.63
  4. Step 4: Simplify right side
    947,102.55x = 676,196,980,530.42
  5. Step 5: Solve for x
    x = 676,196,980,530.42/947,102.55
  6. Step 6: Final answer
    x = 713,963.85

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Double scale
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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.