Home / 989,350.12-1,484,134.14-315,274.60

Finding the Fourth Proportional to 989,350.12, 1,484,134.14 and 315,274.60

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Solution

The fourth proportional to 989,350.12, 1,484,134.14 and 315,274.60 is: 472,946.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,350.12 : 1,484,134.14 = 315,274.60 : x
  2. Step 2: Convert to fraction form
    989,350.12/1,484,134.14 = 315,274.60/x
  3. Step 3: Cross multiply
    989,350.12x = 1,484,134.14 × 315,274.60
  4. Step 4: Simplify right side
    989,350.12x = 467,909,797,334.84
  5. Step 5: Solve for x
    x = 467,909,797,334.84/989,350.12
  6. Step 6: Final answer
    x = 472,946.62

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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.