Home / 499,038.57-688,675.37-272,688.93

Finding the Fourth Proportional to 499,038.57, 688,675.37 and 272,688.93

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Solution

The fourth proportional to 499,038.57, 688,675.37 and 272,688.93 is: 376,311.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,038.57 : 688,675.37 = 272,688.93 : x
  2. Step 2: Convert to fraction form
    499,038.57/688,675.37 = 272,688.93/x
  3. Step 3: Cross multiply
    499,038.57x = 688,675.37 × 272,688.93
  4. Step 4: Simplify right side
    499,038.57x = 187,794,148,399.21
  5. Step 5: Solve for x
    x = 187,794,148,399.21/499,038.57
  6. Step 6: Final answer
    x = 376,311.89

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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.