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Finding the Fourth Proportional to 978,463.16, 1,350,288.95 and 548,734.07

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Solution

The fourth proportional to 978,463.16, 1,350,288.95 and 548,734.07 is: 757,258.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,463.16 : 1,350,288.95 = 548,734.07 : x
  2. Step 2: Convert to fraction form
    978,463.16/1,350,288.95 = 548,734.07/x
  3. Step 3: Cross multiply
    978,463.16x = 1,350,288.95 × 548,734.07
  4. Step 4: Simplify right side
    978,463.16x = 740,949,541,714.41
  5. Step 5: Solve for x
    x = 740,949,541,714.41/978,463.16
  6. Step 6: Final answer
    x = 757,258.49

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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.