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Finding the Fourth Proportional to 528,683.92, 729,584.46 and 286,966.48

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Solution

The fourth proportional to 528,683.92, 729,584.46 and 286,966.48 is: 396,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,683.92 : 729,584.46 = 286,966.48 : x
  2. Step 2: Convert to fraction form
    528,683.92/729,584.46 = 286,966.48/x
  3. Step 3: Cross multiply
    528,683.92x = 729,584.46 × 286,966.48
  4. Step 4: Simplify right side
    528,683.92x = 209,366,284,348.90
  5. Step 5: Solve for x
    x = 209,366,284,348.90/528,683.92
  6. Step 6: Final answer
    x = 396,014.10

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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.