Home / 820,328.48-1,130,763.96-561,758.24

Finding the Fourth Proportional to 820,328.48, 1,130,763.96 and 561,758.24

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Solution

The fourth proportional to 820,328.48, 1,130,763.96 and 561,758.24 is: 774,343.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,328.48 : 1,130,763.96 = 561,758.24 : x
  2. Step 2: Convert to fraction form
    820,328.48/1,130,763.96 = 561,758.24/x
  3. Step 3: Cross multiply
    820,328.48x = 1,130,763.96 × 561,758.24
  4. Step 4: Simplify right side
    820,328.48x = 635,215,972,025.03
  5. Step 5: Solve for x
    x = 635,215,972,025.03/820,328.48
  6. Step 6: Final answer
    x = 774,343.43

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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.