Home / 1,408,337.52-2,111,975.93-509,557.06

Finding the Fourth Proportional to 1,408,337.52, 2,111,975.93 and 509,557.06

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Solution

The fourth proportional to 1,408,337.52, 2,111,975.93 and 509,557.06 is: 764,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,337.52 : 2,111,975.93 = 509,557.06 : x
  2. Step 2: Convert to fraction form
    1,408,337.52/2,111,975.93 = 509,557.06/x
  3. Step 3: Cross multiply
    1,408,337.52x = 2,111,975.93 × 509,557.06
  4. Step 4: Simplify right side
    1,408,337.52x = 1,076,172,243,133.78
  5. Step 5: Solve for x
    x = 1,076,172,243,133.78/1,408,337.52
  6. Step 6: Final answer
    x = 764,143.70

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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.