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Finding the Fourth Proportional to 528,740.69, 729,673.52 and 299,298.26

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Solution

The fourth proportional to 528,740.69, 729,673.52 and 299,298.26 is: 413,038.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,740.69 : 729,673.52 = 299,298.26 : x
  2. Step 2: Convert to fraction form
    528,740.69/729,673.52 = 299,298.26/x
  3. Step 3: Cross multiply
    528,740.69x = 729,673.52 × 299,298.26
  4. Step 4: Simplify right side
    528,740.69x = 218,390,015,231.77
  5. Step 5: Solve for x
    x = 218,390,015,231.77/528,740.69
  6. Step 6: Final answer
    x = 413,038.04

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.