Home / 772,606.28-1,066,199.16-428,466.80

Finding the Fourth Proportional to 772,606.28, 1,066,199.16 and 428,466.80

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Solution

The fourth proportional to 772,606.28, 1,066,199.16 and 428,466.80 is: 591,285.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,606.28 : 1,066,199.16 = 428,466.80 : x
  2. Step 2: Convert to fraction form
    772,606.28/1,066,199.16 = 428,466.80/x
  3. Step 3: Cross multiply
    772,606.28x = 1,066,199.16 × 428,466.80
  4. Step 4: Simplify right side
    772,606.28x = 456,830,942,247.89
  5. Step 5: Solve for x
    x = 456,830,942,247.89/772,606.28
  6. Step 6: Final answer
    x = 591,285.57

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Double scale
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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.