Home / 647,881.02-972,102.21-348,011.73

Finding the Fourth Proportional to 647,881.02, 972,102.21 and 348,011.73

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Solution

The fourth proportional to 647,881.02, 972,102.21 and 348,011.73 is: 522,168.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,881.02 : 972,102.21 = 348,011.73 : x
  2. Step 2: Convert to fraction form
    647,881.02/972,102.21 = 348,011.73/x
  3. Step 3: Cross multiply
    647,881.02x = 972,102.21 × 348,011.73
  4. Step 4: Simplify right side
    647,881.02x = 338,302,971,838.92
  5. Step 5: Solve for x
    x = 338,302,971,838.92/647,881.02
  6. Step 6: Final answer
    x = 522,168.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.