Home / 1,970,107.12-2,955,328.35-621,909.10

Finding the Fourth Proportional to 1,970,107.12, 2,955,328.35 and 621,909.10

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Solution

The fourth proportional to 1,970,107.12, 2,955,328.35 and 621,909.10 is: 932,916.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970,107.12 : 2,955,328.35 = 621,909.10 : x
  2. Step 2: Convert to fraction form
    1,970,107.12/2,955,328.35 = 621,909.10/x
  3. Step 3: Cross multiply
    1,970,107.12x = 2,955,328.35 × 621,909.10
  4. Step 4: Simplify right side
    1,970,107.12x = 1,837,945,594,352.99
  5. Step 5: Solve for x
    x = 1,837,945,594,352.99/1,970,107.12
  6. Step 6: Final answer
    x = 932,916.58

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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.