Home / 772,988.34-1,066,725.16-428,824.28

Finding the Fourth Proportional to 772,988.34, 1,066,725.16 and 428,824.28

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Solution

The fourth proportional to 772,988.34, 1,066,725.16 and 428,824.28 is: 591,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,988.34 : 1,066,725.16 = 428,824.28 : x
  2. Step 2: Convert to fraction form
    772,988.34/1,066,725.16 = 428,824.28/x
  3. Step 3: Cross multiply
    772,988.34x = 1,066,725.16 × 428,824.28
  4. Step 4: Simplify right side
    772,988.34x = 457,437,646,550.76
  5. Step 5: Solve for x
    x = 457,437,646,550.76/772,988.34
  6. Step 6: Final answer
    x = 591,778.20

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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.