Home / 459,320.67-688,995.18-379,977.93

Finding the Fourth Proportional to 459,320.67, 688,995.18 and 379,977.93

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Solution

The fourth proportional to 459,320.67, 688,995.18 and 379,977.93 is: 569,978.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,320.67 : 688,995.18 = 379,977.93 : x
  2. Step 2: Convert to fraction form
    459,320.67/688,995.18 = 379,977.93/x
  3. Step 3: Cross multiply
    459,320.67x = 688,995.18 × 379,977.93
  4. Step 4: Simplify right side
    459,320.67x = 261,802,962,276.38
  5. Step 5: Solve for x
    x = 261,802,962,276.38/459,320.67
  6. Step 6: Final answer
    x = 569,978.62

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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.