Home / 688,207.35-1,032,075.72-261,640.29

Finding the Fourth Proportional to 688,207.35, 1,032,075.72 and 261,640.29

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Solution

The fourth proportional to 688,207.35, 1,032,075.72 and 261,640.29 is: 392,370.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,207.35 : 1,032,075.72 = 261,640.29 : x
  2. Step 2: Convert to fraction form
    688,207.35/1,032,075.72 = 261,640.29/x
  3. Step 3: Cross multiply
    688,207.35x = 1,032,075.72 × 261,640.29
  4. Step 4: Simplify right side
    688,207.35x = 270,032,590,682.76
  5. Step 5: Solve for x
    x = 270,032,590,682.76/688,207.35
  6. Step 6: Final answer
    x = 392,370.98

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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.