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Finding the Fourth Proportional to 518,018.24, 714,971.20 and 326,903.04

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Solution

The fourth proportional to 518,018.24, 714,971.20 and 326,903.04 is: 451,193.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,018.24 : 714,971.20 = 326,903.04 : x
  2. Step 2: Convert to fraction form
    518,018.24/714,971.20 = 326,903.04/x
  3. Step 3: Cross multiply
    518,018.24x = 714,971.20 × 326,903.04
  4. Step 4: Simplify right side
    518,018.24x = 233,726,258,792.45
  5. Step 5: Solve for x
    x = 233,726,258,792.45/518,018.24
  6. Step 6: Final answer
    x = 451,193.11

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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.