Home / 3,178,565.40-4,767,741.47-1,381,448.72

Finding the Fourth Proportional to 3,178,565.40, 4,767,741.47 and 1,381,448.72

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Solution

The fourth proportional to 3,178,565.40, 4,767,741.47 and 1,381,448.72 is: 2,072,126.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,565.40 : 4,767,741.47 = 1,381,448.72 : x
  2. Step 2: Convert to fraction form
    3,178,565.40/4,767,741.47 = 1,381,448.72/x
  3. Step 3: Cross multiply
    3,178,565.40x = 4,767,741.47 × 1,381,448.72
  4. Step 4: Simplify right side
    3,178,565.40x = 6,586,390,366,395.39
  5. Step 5: Solve for x
    x = 6,586,390,366,395.39/3,178,565.40
  6. Step 6: Final answer
    x = 2,072,126.74

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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.