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Finding the Third Proportional to 459,075.50 and 688,615

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Solution

The third proportional to 459,075.50 and 688,615 is: 1,032,925.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,075.50 : 688,615 = 688,615 : x
  2. Step 2: Convert to fraction form
    459,075.50/688,615 = 688,615/x
  3. Step 3: Cross multiply
    459,075.50x = 688,615 × 688,615
  4. Step 4: Simplify right side
    459,075.50x = 474,190,618,225
  5. Step 5: Solve for x
    x = 474,190,618,225/459,075.50
  6. Step 6: Final answer
    x = 1,032,925.13

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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.