Home / 2,840,421.71-3,919,878.70-1,679,862.83

Finding the Fourth Proportional to 2,840,421.71, 3,919,878.70 and 1,679,862.83

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Solution

The fourth proportional to 2,840,421.71, 3,919,878.70 and 1,679,862.83 is: 2,318,267.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840,421.71 : 3,919,878.70 = 1,679,862.83 : x
  2. Step 2: Convert to fraction form
    2,840,421.71/3,919,878.70 = 1,679,862.83/x
  3. Step 3: Cross multiply
    2,840,421.71x = 3,919,878.70 × 1,679,862.83
  4. Step 4: Simplify right side
    2,840,421.71x = 6,584,858,502,439.67
  5. Step 5: Solve for x
    x = 6,584,858,502,439.67/2,840,421.71
  6. Step 6: Final answer
    x = 2,318,267.91

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1.5x scale

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.