Home / 1,275,921.02-1,913,817.94-477,143.84

Finding the Fourth Proportional to 1,275,921.02, 1,913,817.94 and 477,143.84

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Solution

The fourth proportional to 1,275,921.02, 1,913,817.94 and 477,143.84 is: 715,691.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,921.02 : 1,913,817.94 = 477,143.84 : x
  2. Step 2: Convert to fraction form
    1,275,921.02/1,913,817.94 = 477,143.84/x
  3. Step 3: Cross multiply
    1,275,921.02x = 1,913,817.94 × 477,143.84
  4. Step 4: Simplify right side
    1,275,921.02x = 913,166,440,952.49
  5. Step 5: Solve for x
    x = 913,166,440,952.49/1,275,921.02
  6. Step 6: Final answer
    x = 715,691.98

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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.