Home / 3,290,068.80-4,540,307.04-1,913,742.72

Finding the Fourth Proportional to 3,290,068.80, 4,540,307.04 and 1,913,742.72

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Solution

The fourth proportional to 3,290,068.80, 4,540,307.04 and 1,913,742.72 is: 2,640,971.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290,068.80 : 4,540,307.04 = 1,913,742.72 : x
  2. Step 2: Convert to fraction form
    3,290,068.80/4,540,307.04 = 1,913,742.72/x
  3. Step 3: Cross multiply
    3,290,068.80x = 4,540,307.04 × 1,913,742.72
  4. Step 4: Simplify right side
    3,290,068.80x = 8,688,979,544,364.75
  5. Step 5: Solve for x
    x = 8,688,979,544,364.75/3,290,068.80
  6. Step 6: Final answer
    x = 2,640,971.99

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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.