Home / 821,328.83-1,133,421.75-458,757.93

Finding the Fourth Proportional to 821,328.83, 1,133,421.75 and 458,757.93

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Solution

The fourth proportional to 821,328.83, 1,133,421.75 and 458,757.93 is: 633,079.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,328.83 : 1,133,421.75 = 458,757.93 : x
  2. Step 2: Convert to fraction form
    821,328.83/1,133,421.75 = 458,757.93/x
  3. Step 3: Cross multiply
    821,328.83x = 1,133,421.75 × 458,757.93
  4. Step 4: Simplify right side
    821,328.83x = 519,966,215,846.98
  5. Step 5: Solve for x
    x = 519,966,215,846.98/821,328.83
  6. Step 6: Final answer
    x = 633,079.22

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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.