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Finding the Fourth Proportional to 529,547.76, 730,771.89 and 287,832.06

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Solution

The fourth proportional to 529,547.76, 730,771.89 and 287,832.06 is: 397,206.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,547.76 : 730,771.89 = 287,832.06 : x
  2. Step 2: Convert to fraction form
    529,547.76/730,771.89 = 287,832.06/x
  3. Step 3: Cross multiply
    529,547.76x = 730,771.89 × 287,832.06
  4. Step 4: Simplify right side
    529,547.76x = 210,339,578,488.79
  5. Step 5: Solve for x
    x = 210,339,578,488.79/529,547.76
  6. Step 6: Final answer
    x = 397,206.06

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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.