Home / 688,485.65-1,032,372.03-309,079.73

Finding the Fourth Proportional to 688,485.65, 1,032,372.03 and 309,079.73

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Solution

The fourth proportional to 688,485.65, 1,032,372.03 and 309,079.73 is: 463,459.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,485.65 : 1,032,372.03 = 309,079.73 : x
  2. Step 2: Convert to fraction form
    688,485.65/1,032,372.03 = 309,079.73/x
  3. Step 3: Cross multiply
    688,485.65x = 1,032,372.03 × 309,079.73
  4. Step 4: Simplify right side
    688,485.65x = 319,085,268,291.95
  5. Step 5: Solve for x
    x = 319,085,268,291.95/688,485.65
  6. Step 6: Final answer
    x = 463,459.58

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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.