Home / 1,243,364.70-1,866,429.45-770,583.90

Finding the Fourth Proportional to 1,243,364.70, 1,866,429.45 and 770,583.90

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Solution

The fourth proportional to 1,243,364.70, 1,866,429.45 and 770,583.90 is: 1,156,732.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,364.70 : 1,866,429.45 = 770,583.90 : x
  2. Step 2: Convert to fraction form
    1,243,364.70/1,866,429.45 = 770,583.90/x
  3. Step 3: Cross multiply
    1,243,364.70x = 1,866,429.45 × 770,583.90
  4. Step 4: Simplify right side
    1,243,364.70x = 1,438,240,484,655.86
  5. Step 5: Solve for x
    x = 1,438,240,484,655.86/1,243,364.70
  6. Step 6: Final answer
    x = 1,156,732.60

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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.