Home / 1,869,129.81-2,579,401.53-1,009,690.11

Finding the Fourth Proportional to 1,869,129.81, 2,579,401.53 and 1,009,690.11

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Solution

The fourth proportional to 1,869,129.81, 2,579,401.53 and 1,009,690.11 is: 1,393,373.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869,129.81 : 2,579,401.53 = 1,009,690.11 : x
  2. Step 2: Convert to fraction form
    1,869,129.81/2,579,401.53 = 1,009,690.11/x
  3. Step 3: Cross multiply
    1,869,129.81x = 2,579,401.53 × 1,009,690.11
  4. Step 4: Simplify right side
    1,869,129.81x = 2,604,396,214,559.87
  5. Step 5: Solve for x
    x = 2,604,396,214,559.87/1,869,129.81
  6. Step 6: Final answer
    x = 1,393,373.64

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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.