Home / 1,377,298.84-1,900,670.52-765,432.40

Finding the Fourth Proportional to 1,377,298.84, 1,900,670.52 and 765,432.40

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Solution

The fourth proportional to 1,377,298.84, 1,900,670.52 and 765,432.40 is: 1,056,295.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,298.84 : 1,900,670.52 = 765,432.40 : x
  2. Step 2: Convert to fraction form
    1,377,298.84/1,900,670.52 = 765,432.40/x
  3. Step 3: Cross multiply
    1,377,298.84x = 1,900,670.52 × 765,432.40
  4. Step 4: Simplify right side
    1,377,298.84x = 1,454,834,797,732.85
  5. Step 5: Solve for x
    x = 1,454,834,797,732.85/1,377,298.84
  6. Step 6: Final answer
    x = 1,056,295.67

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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.