Home / 688,285.56-1,032,247.89-308,994.18

Finding the Fourth Proportional to 688,285.56, 1,032,247.89 and 308,994.18

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Solution

The fourth proportional to 688,285.56, 1,032,247.89 and 308,994.18 is: 463,410.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,285.56 : 1,032,247.89 = 308,994.18 : x
  2. Step 2: Convert to fraction form
    688,285.56/1,032,247.89 = 308,994.18/x
  3. Step 3: Cross multiply
    688,285.56x = 1,032,247.89 × 308,994.18
  4. Step 4: Simplify right side
    688,285.56x = 318,958,590,327.28
  5. Step 5: Solve for x
    x = 318,958,590,327.28/688,285.56
  6. Step 6: Final answer
    x = 463,410.26

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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.