Home / 762,762.58-1,052,588.64-418,589.66

Finding the Fourth Proportional to 762,762.58, 1,052,588.64 and 418,589.66

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Solution

The fourth proportional to 762,762.58, 1,052,588.64 and 418,589.66 is: 577,640.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,762.58 : 1,052,588.64 = 418,589.66 : x
  2. Step 2: Convert to fraction form
    762,762.58/1,052,588.64 = 418,589.66/x
  3. Step 3: Cross multiply
    762,762.58x = 1,052,588.64 × 418,589.66
  4. Step 4: Simplify right side
    762,762.58x = 440,602,720,937.46
  5. Step 5: Solve for x
    x = 440,602,720,937.46/762,762.58
  6. Step 6: Final answer
    x = 577,640.71

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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.