Home / 1,284,127.72-1,772,114.84-740,253.64

Finding the Fourth Proportional to 1,284,127.72, 1,772,114.84 and 740,253.64

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Solution

The fourth proportional to 1,284,127.72, 1,772,114.84 and 740,253.64 is: 1,021,560.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,127.72 : 1,772,114.84 = 740,253.64 : x
  2. Step 2: Convert to fraction form
    1,284,127.72/1,772,114.84 = 740,253.64/x
  3. Step 3: Cross multiply
    1,284,127.72x = 1,772,114.84 × 740,253.64
  4. Step 4: Simplify right side
    1,284,127.72x = 1,311,814,460,808.02
  5. Step 5: Solve for x
    x = 1,311,814,460,808.02/1,284,127.72
  6. Step 6: Final answer
    x = 1,021,560.74

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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.