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Finding the Fourth Proportional to 631,466.07, 947,797.94 and 390,852.14

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Solution

The fourth proportional to 631,466.07, 947,797.94 and 390,852.14 is: 586,648.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,466.07 : 947,797.94 = 390,852.14 : x
  2. Step 2: Convert to fraction form
    631,466.07/947,797.94 = 390,852.14/x
  3. Step 3: Cross multiply
    631,466.07x = 947,797.94 × 390,852.14
  4. Step 4: Simplify right side
    631,466.07x = 370,448,846,443.34
  5. Step 5: Solve for x
    x = 370,448,846,443.34/631,466.07
  6. Step 6: Final answer
    x = 586,648.85

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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.