Home / 498,858-688,439.16-272,518.08

Finding the Fourth Proportional to 498,858, 688,439.16 and 272,518.08

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Solution

The fourth proportional to 498,858, 688,439.16 and 272,518.08 is: 376,083.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,858 : 688,439.16 = 272,518.08 : x
  2. Step 2: Convert to fraction form
    498,858/688,439.16 = 272,518.08/x
  3. Step 3: Cross multiply
    498,858x = 688,439.16 × 272,518.08
  4. Step 4: Simplify right side
    498,858x = 187,612,118,080.01
  5. Step 5: Solve for x
    x = 187,612,118,080.01/498,858
  6. Step 6: Final answer
    x = 376,083.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.