Home / 498,856.59-688,421.03-272,502.09

Finding the Fourth Proportional to 498,856.59, 688,421.03 and 272,502.09

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Solution

The fourth proportional to 498,856.59, 688,421.03 and 272,502.09 is: 376,052.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,856.59 : 688,421.03 = 272,502.09 : x
  2. Step 2: Convert to fraction form
    498,856.59/688,421.03 = 272,502.09/x
  3. Step 3: Cross multiply
    498,856.59x = 688,421.03 × 272,502.09
  4. Step 4: Simplify right side
    498,856.59x = 187,596,168,112.44
  5. Step 5: Solve for x
    x = 187,596,168,112.44/498,856.59
  6. Step 6: Final answer
    x = 376,052.30

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1.5x scale

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.