Home / 1,388,783.98-1,915,750.24-807,941.86

Finding the Fourth Proportional to 1,388,783.98, 1,915,750.24 and 807,941.86

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Solution

The fourth proportional to 1,388,783.98, 1,915,750.24 and 807,941.86 is: 1,114,510.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,783.98 : 1,915,750.24 = 807,941.86 : x
  2. Step 2: Convert to fraction form
    1,388,783.98/1,915,750.24 = 807,941.86/x
  3. Step 3: Cross multiply
    1,388,783.98x = 1,915,750.24 × 807,941.86
  4. Step 4: Simplify right side
    1,388,783.98x = 1,547,814,812,201.05
  5. Step 5: Solve for x
    x = 1,547,814,812,201.05/1,388,783.98
  6. Step 6: Final answer
    x = 1,114,510.85

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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.