Home / 812,794.28-1,121,549.82-468,643.16

Finding the Fourth Proportional to 812,794.28, 1,121,549.82 and 468,643.16

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Solution

The fourth proportional to 812,794.28, 1,121,549.82 and 468,643.16 is: 646,666.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,794.28 : 1,121,549.82 = 468,643.16 : x
  2. Step 2: Convert to fraction form
    812,794.28/1,121,549.82 = 468,643.16/x
  3. Step 3: Cross multiply
    812,794.28x = 1,121,549.82 × 468,643.16
  4. Step 4: Simplify right side
    812,794.28x = 525,606,651,742.23
  5. Step 5: Solve for x
    x = 525,606,651,742.23/812,794.28
  6. Step 6: Final answer
    x = 646,666.28

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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.