Home / 1,021,145.34-1,531,717.29-459,523.74

Finding the Fourth Proportional to 1,021,145.34, 1,531,717.29 and 459,523.74

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Solution

The fourth proportional to 1,021,145.34, 1,531,717.29 and 459,523.74 is: 689,285.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,145.34 : 1,531,717.29 = 459,523.74 : x
  2. Step 2: Convert to fraction form
    1,021,145.34/1,531,717.29 = 459,523.74/x
  3. Step 3: Cross multiply
    1,021,145.34x = 1,531,717.29 × 459,523.74
  4. Step 4: Simplify right side
    1,021,145.34x = 703,860,457,723.47
  5. Step 5: Solve for x
    x = 703,860,457,723.47/1,021,145.34
  6. Step 6: Final answer
    x = 689,285.29

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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.