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Finding the Fourth Proportional to 528,600.62, 729,474.30 and 286,885.28

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Solution

The fourth proportional to 528,600.62, 729,474.30 and 286,885.28 is: 395,904.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,600.62 : 729,474.30 = 286,885.28 : x
  2. Step 2: Convert to fraction form
    528,600.62/729,474.30 = 286,885.28/x
  3. Step 3: Cross multiply
    528,600.62x = 729,474.30 × 286,885.28
  4. Step 4: Simplify right side
    528,600.62x = 209,275,435,160.93
  5. Step 5: Solve for x
    x = 209,275,435,160.93/528,600.62
  6. Step 6: Final answer
    x = 395,904.64

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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.