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Finding the Fourth Proportional to 658,946.40, 909,361.92 and 372,467.52

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Solution

The fourth proportional to 658,946.40, 909,361.92 and 372,467.52 is: 514,014.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,946.40 : 909,361.92 = 372,467.52 : x
  2. Step 2: Convert to fraction form
    658,946.40/909,361.92 = 372,467.52/x
  3. Step 3: Cross multiply
    658,946.40x = 909,361.92 × 372,467.52
  4. Step 4: Simplify right side
    658,946.40x = 338,707,779,124.84
  5. Step 5: Solve for x
    x = 338,707,779,124.84/658,946.40
  6. Step 6: Final answer
    x = 514,014.16

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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.