Home / 688,447.56-1,032,315-309,041.60

Finding the Fourth Proportional to 688,447.56, 1,032,315 and 309,041.60

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Solution

The fourth proportional to 688,447.56, 1,032,315 and 309,041.60 is: 463,402.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,447.56 : 1,032,315 = 309,041.60 : x
  2. Step 2: Convert to fraction form
    688,447.56/1,032,315 = 309,041.60/x
  3. Step 3: Cross multiply
    688,447.56x = 1,032,315 × 309,041.60
  4. Step 4: Simplify right side
    688,447.56x = 319,028,279,304
  5. Step 5: Solve for x
    x = 319,028,279,304/688,447.56
  6. Step 6: Final answer
    x = 463,402.44

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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.