Home / 1,113,919.80-1,536,945.78-630,484.88

Finding the Fourth Proportional to 1,113,919.80, 1,536,945.78 and 630,484.88

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Solution

The fourth proportional to 1,113,919.80, 1,536,945.78 and 630,484.88 is: 869,919.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,919.80 : 1,536,945.78 = 630,484.88 : x
  2. Step 2: Convert to fraction form
    1,113,919.80/1,536,945.78 = 630,484.88/x
  3. Step 3: Cross multiply
    1,113,919.80x = 1,536,945.78 × 630,484.88
  4. Step 4: Simplify right side
    1,113,919.80x = 969,021,075,669.81
  5. Step 5: Solve for x
    x = 969,021,075,669.81/1,113,919.80
  6. Step 6: Final answer
    x = 869,919.97

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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.