Home / 821,327.80-1,133,420.38-458,756.77

Finding the Fourth Proportional to 821,327.80, 1,133,420.38 and 458,756.77

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Solution

The fourth proportional to 821,327.80, 1,133,420.38 and 458,756.77 is: 633,077.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,327.80 : 1,133,420.38 = 458,756.77 : x
  2. Step 2: Convert to fraction form
    821,327.80/1,133,420.38 = 458,756.77/x
  3. Step 3: Cross multiply
    821,327.80x = 1,133,420.38 × 458,756.77
  4. Step 4: Simplify right side
    821,327.80x = 519,964,272,580.97
  5. Step 5: Solve for x
    x = 519,964,272,580.97/821,327.80
  6. Step 6: Final answer
    x = 633,077.65

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1.5x scale

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.