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Finding the Fourth Proportional to 658,802.62, 909,148.08 and 356,996.62

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Solution

The fourth proportional to 658,802.62, 909,148.08 and 356,996.62 is: 492,655.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,802.62 : 909,148.08 = 356,996.62 : x
  2. Step 2: Convert to fraction form
    658,802.62/909,148.08 = 356,996.62/x
  3. Step 3: Cross multiply
    658,802.62x = 909,148.08 × 356,996.62
  4. Step 4: Simplify right side
    658,802.62x = 324,562,791,639.49
  5. Step 5: Solve for x
    x = 324,562,791,639.49/658,802.62
  6. Step 6: Final answer
    x = 492,655.59

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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.