Home / 772,817.22-1,066,488.12-428,641.20

Finding the Fourth Proportional to 772,817.22, 1,066,488.12 and 428,641.20

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Solution

The fourth proportional to 772,817.22, 1,066,488.12 and 428,641.20 is: 591,525.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,817.22 : 1,066,488.12 = 428,641.20 : x
  2. Step 2: Convert to fraction form
    772,817.22/1,066,488.12 = 428,641.20/x
  3. Step 3: Cross multiply
    772,817.22x = 1,066,488.12 × 428,641.20
  4. Step 4: Simplify right side
    772,817.22x = 457,140,747,542.54
  5. Step 5: Solve for x
    x = 457,140,747,542.54/772,817.22
  6. Step 6: Final answer
    x = 591,525.05

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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.