Home / 772,660.29-1,066,305.66-428,473.17

Finding the Fourth Proportional to 772,660.29, 1,066,305.66 and 428,473.17

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Solution

The fourth proportional to 772,660.29, 1,066,305.66 and 428,473.17 is: 591,312.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,660.29 : 1,066,305.66 = 428,473.17 : x
  2. Step 2: Convert to fraction form
    772,660.29/1,066,305.66 = 428,473.17/x
  3. Step 3: Cross multiply
    772,660.29x = 1,066,305.66 × 428,473.17
  4. Step 4: Simplify right side
    772,660.29x = 456,883,366,329.14
  5. Step 5: Solve for x
    x = 456,883,366,329.14/772,660.29
  6. Step 6: Final answer
    x = 591,312.08

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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.