Home / 920,843.28-1,270,822.08-518,461.20

Finding the Fourth Proportional to 920,843.28, 1,270,822.08 and 518,461.20

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Solution

The fourth proportional to 920,843.28, 1,270,822.08 and 518,461.20 is: 715,509.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,843.28 : 1,270,822.08 = 518,461.20 : x
  2. Step 2: Convert to fraction form
    920,843.28/1,270,822.08 = 518,461.20/x
  3. Step 3: Cross multiply
    920,843.28x = 1,270,822.08 × 518,461.20
  4. Step 4: Simplify right side
    920,843.28x = 658,871,940,583.30
  5. Step 5: Solve for x
    x = 658,871,940,583.30/920,843.28
  6. Step 6: Final answer
    x = 715,509.31

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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.