Home / 765,331.67-1,055,804.32-493,486.86

Finding the Fourth Proportional to 765,331.67, 1,055,804.32 and 493,486.86

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Solution

The fourth proportional to 765,331.67, 1,055,804.32 and 493,486.86 is: 680,784.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,331.67 : 1,055,804.32 = 493,486.86 : x
  2. Step 2: Convert to fraction form
    765,331.67/1,055,804.32 = 493,486.86/x
  3. Step 3: Cross multiply
    765,331.67x = 1,055,804.32 × 493,486.86
  4. Step 4: Simplify right side
    765,331.67x = 521,025,563,227.36
  5. Step 5: Solve for x
    x = 521,025,563,227.36/765,331.67
  6. Step 6: Final answer
    x = 680,784.01

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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.