Home / 1,259,612.80-1,738,254.40-686,652.80

Finding the Fourth Proportional to 1,259,612.80, 1,738,254.40 and 686,652.80

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Solution

The fourth proportional to 1,259,612.80, 1,738,254.40 and 686,652.80 is: 947,574.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,612.80 : 1,738,254.40 = 686,652.80 : x
  2. Step 2: Convert to fraction form
    1,259,612.80/1,738,254.40 = 686,652.80/x
  3. Step 3: Cross multiply
    1,259,612.80x = 1,738,254.40 × 686,652.80
  4. Step 4: Simplify right side
    1,259,612.80x = 1,193,577,250,872.32
  5. Step 5: Solve for x
    x = 1,193,577,250,872.32/1,259,612.80
  6. Step 6: Final answer
    x = 947,574.72

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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.