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Finding the Fourth Proportional to 498,855.84, 688,419.99 and 272,501.34

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Solution

The fourth proportional to 498,855.84, 688,419.99 and 272,501.34 is: 376,051.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,855.84 : 688,419.99 = 272,501.34 : x
  2. Step 2: Convert to fraction form
    498,855.84/688,419.99 = 272,501.34/x
  3. Step 3: Cross multiply
    498,855.84x = 688,419.99 × 272,501.34
  4. Step 4: Simplify right side
    498,855.84x = 187,595,369,757.79
  5. Step 5: Solve for x
    x = 187,595,369,757.79/498,855.84
  6. Step 6: Final answer
    x = 376,051.27

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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.