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Finding the Fourth Proportional to 658,772.90, 909,099.15 and 356,966.90

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Solution

The fourth proportional to 658,772.90, 909,099.15 and 356,966.90 is: 492,610.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,772.90 : 909,099.15 = 356,966.90 : x
  2. Step 2: Convert to fraction form
    658,772.90/909,099.15 = 356,966.90/x
  3. Step 3: Cross multiply
    658,772.90x = 909,099.15 × 356,966.90
  4. Step 4: Simplify right side
    658,772.90x = 324,518,302,893.14
  5. Step 5: Solve for x
    x = 324,518,302,893.14/658,772.90
  6. Step 6: Final answer
    x = 492,610.28

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1.5x scale

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.