Home / 772,566.42-1,066,252.01-428,478.86

Finding the Fourth Proportional to 772,566.42, 1,066,252.01 and 428,478.86

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Solution

The fourth proportional to 772,566.42, 1,066,252.01 and 428,478.86 is: 591,362.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,566.42 : 1,066,252.01 = 428,478.86 : x
  2. Step 2: Convert to fraction form
    772,566.42/1,066,252.01 = 428,478.86/x
  3. Step 3: Cross multiply
    772,566.42x = 1,066,252.01 × 428,478.86
  4. Step 4: Simplify right side
    772,566.42x = 456,866,446,240.74
  5. Step 5: Solve for x
    x = 456,866,446,240.74/772,566.42
  6. Step 6: Final answer
    x = 591,362.03

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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.