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Finding the Fourth Proportional to 631,465.82, 947,797.56 and 390,851.89

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Solution

The fourth proportional to 631,465.82, 947,797.56 and 390,851.89 is: 586,648.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,465.82 : 947,797.56 = 390,851.89 : x
  2. Step 2: Convert to fraction form
    631,465.82/947,797.56 = 390,851.89/x
  3. Step 3: Cross multiply
    631,465.82x = 947,797.56 × 390,851.89
  4. Step 4: Simplify right side
    631,465.82x = 370,448,462,924.40
  5. Step 5: Solve for x
    x = 370,448,462,924.40/631,465.82
  6. Step 6: Final answer
    x = 586,648.48

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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.