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Finding the Fourth Proportional to 528,673.13, 729,549.29 and 286,950.50

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Solution

The fourth proportional to 528,673.13, 729,549.29 and 286,950.50 is: 395,981.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,673.13 : 729,549.29 = 286,950.50 : x
  2. Step 2: Convert to fraction form
    528,673.13/729,549.29 = 286,950.50/x
  3. Step 3: Cross multiply
    528,673.13x = 729,549.29 × 286,950.50
  4. Step 4: Simplify right side
    528,673.13x = 209,344,533,540.15
  5. Step 5: Solve for x
    x = 209,344,533,540.15/528,673.13
  6. Step 6: Final answer
    x = 395,981.04

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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.