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Finding the Fourth Proportional to 984,802.76, 1,477,402.86 and 310,989.32

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Solution

The fourth proportional to 984,802.76, 1,477,402.86 and 310,989.32 is: 466,546.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,802.76 : 1,477,402.86 = 310,989.32 : x
  2. Step 2: Convert to fraction form
    984,802.76/1,477,402.86 = 310,989.32/x
  3. Step 3: Cross multiply
    984,802.76x = 1,477,402.86 × 310,989.32
  4. Step 4: Simplify right side
    984,802.76x = 459,456,510,797.46
  5. Step 5: Solve for x
    x = 459,456,510,797.46/984,802.76
  6. Step 6: Final answer
    x = 466,546.73

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1.5x scale

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.