Home / 830,399.16-1,145,713.80-467,696.28

Finding the Fourth Proportional to 830,399.16, 1,145,713.80 and 467,696.28

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Solution

The fourth proportional to 830,399.16, 1,145,713.80 and 467,696.28 is: 645,287.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,399.16 : 1,145,713.80 = 467,696.28 : x
  2. Step 2: Convert to fraction form
    830,399.16/1,145,713.80 = 467,696.28/x
  3. Step 3: Cross multiply
    830,399.16x = 1,145,713.80 × 467,696.28
  4. Step 4: Simplify right side
    830,399.16x = 535,846,082,204.66
  5. Step 5: Solve for x
    x = 535,846,082,204.66/830,399.16
  6. Step 6: Final answer
    x = 645,287.36

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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.