Home / 1,288,753.84-1,778,282.81-744,784.67

Finding the Fourth Proportional to 1,288,753.84, 1,778,282.81 and 744,784.67

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Solution

The fourth proportional to 1,288,753.84, 1,778,282.81 and 744,784.67 is: 1,027,688.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,753.84 : 1,778,282.81 = 744,784.67 : x
  2. Step 2: Convert to fraction form
    1,288,753.84/1,778,282.81 = 744,784.67/x
  3. Step 3: Cross multiply
    1,288,753.84x = 1,778,282.81 × 744,784.67
  4. Step 4: Simplify right side
    1,288,753.84x = 1,324,437,779,327.25
  5. Step 5: Solve for x
    x = 1,324,437,779,327.25/1,288,753.84
  6. Step 6: Final answer
    x = 1,027,688.72

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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.