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Finding the Fourth Proportional to 528,673.64, 729,550.04 and 286,951.04

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Solution

The fourth proportional to 528,673.64, 729,550.04 and 286,951.04 is: 395,981.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,673.64 : 729,550.04 = 286,951.04 : x
  2. Step 2: Convert to fraction form
    528,673.64/729,550.04 = 286,951.04/x
  3. Step 3: Cross multiply
    528,673.64x = 729,550.04 × 286,951.04
  4. Step 4: Simplify right side
    528,673.64x = 209,345,142,710.04
  5. Step 5: Solve for x
    x = 209,345,142,710.04/528,673.64
  6. Step 6: Final answer
    x = 395,981.81

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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.