Home / 1,956,111.80-2,931,402.90-1,205,929.40

Finding the Fourth Proportional to 1,956,111.80, 2,931,402.90 and 1,205,929.40

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Solution

The fourth proportional to 1,956,111.80, 2,931,402.90 and 1,205,929.40 is: 1,807,189.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956,111.80 : 2,931,402.90 = 1,205,929.40 : x
  2. Step 2: Convert to fraction form
    1,956,111.80/2,931,402.90 = 1,205,929.40/x
  3. Step 3: Cross multiply
    1,956,111.80x = 2,931,402.90 × 1,205,929.40
  4. Step 4: Simplify right side
    1,956,111.80x = 3,535,064,940,355.26
  5. Step 5: Solve for x
    x = 3,535,064,940,355.26/1,956,111.80
  6. Step 6: Final answer
    x = 1,807,189.62

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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.