Home / 1,005,280.80-1,507,921.20-706,099.20

Finding the Fourth Proportional to 1,005,280.80, 1,507,921.20 and 706,099.20

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Solution

The fourth proportional to 1,005,280.80, 1,507,921.20 and 706,099.20 is: 1,059,148.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,280.80 : 1,507,921.20 = 706,099.20 : x
  2. Step 2: Convert to fraction form
    1,005,280.80/1,507,921.20 = 706,099.20/x
  3. Step 3: Cross multiply
    1,005,280.80x = 1,507,921.20 × 706,099.20
  4. Step 4: Simplify right side
    1,005,280.80x = 1,064,741,952,983.04
  5. Step 5: Solve for x
    x = 1,064,741,952,983.04/1,005,280.80
  6. Step 6: Final answer
    x = 1,059,148.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.