Home / 1,971,342.40-2,956,567.50-905,359.72

Finding the Fourth Proportional to 1,971,342.40, 2,956,567.50 and 905,359.72

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Solution

The fourth proportional to 1,971,342.40, 2,956,567.50 and 905,359.72 is: 1,357,834.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,342.40 : 2,956,567.50 = 905,359.72 : x
  2. Step 2: Convert to fraction form
    1,971,342.40/2,956,567.50 = 905,359.72/x
  3. Step 3: Cross multiply
    1,971,342.40x = 2,956,567.50 × 905,359.72
  4. Step 4: Simplify right side
    1,971,342.40x = 2,676,757,123,961.10
  5. Step 5: Solve for x
    x = 2,676,757,123,961.10/1,971,342.40
  6. Step 6: Final answer
    x = 1,357,834.70

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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.