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Finding the Fourth Proportional to 528,992.17, 730,507.21 and 368,286.55

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Solution

The fourth proportional to 528,992.17, 730,507.21 and 368,286.55 is: 508,582.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,992.17 : 730,507.21 = 368,286.55 : x
  2. Step 2: Convert to fraction form
    528,992.17/730,507.21 = 368,286.55/x
  3. Step 3: Cross multiply
    528,992.17x = 730,507.21 × 368,286.55
  4. Step 4: Simplify right side
    528,992.17x = 269,035,977,374.04
  5. Step 5: Solve for x
    x = 269,035,977,374.04/528,992.17
  6. Step 6: Final answer
    x = 508,582.16

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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.