Home / 1,408,471.96-2,112,177.24-509,691.40

Finding the Fourth Proportional to 1,408,471.96, 2,112,177.24 and 509,691.40

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Solution

The fourth proportional to 1,408,471.96, 2,112,177.24 and 509,691.40 is: 764,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,471.96 : 2,112,177.24 = 509,691.40 : x
  2. Step 2: Convert to fraction form
    1,408,471.96/2,112,177.24 = 509,691.40/x
  3. Step 3: Cross multiply
    1,408,471.96x = 2,112,177.24 × 509,691.40
  4. Step 4: Simplify right side
    1,408,471.96x = 1,076,558,574,503.74
  5. Step 5: Solve for x
    x = 1,076,558,574,503.74/1,408,471.96
  6. Step 6: Final answer
    x = 764,345.05

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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.