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Finding the Fourth Proportional to 653,688.31, 980,075.08 and 333,939.19

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Solution

The fourth proportional to 653,688.31, 980,075.08 and 333,939.19 is: 500,675.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,688.31 : 980,075.08 = 333,939.19 : x
  2. Step 2: Convert to fraction form
    653,688.31/980,075.08 = 333,939.19/x
  3. Step 3: Cross multiply
    653,688.31x = 980,075.08 × 333,939.19
  4. Step 4: Simplify right side
    653,688.31x = 327,285,478,354.39
  5. Step 5: Solve for x
    x = 327,285,478,354.39/653,688.31
  6. Step 6: Final answer
    x = 500,675.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.