Home / 1,207,807.80-1,815,210.90-1,186,812.60

Finding the Fourth Proportional to 1,207,807.80, 1,815,210.90 and 1,186,812.60

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Solution

The fourth proportional to 1,207,807.80, 1,815,210.90 and 1,186,812.60 is: 1,783,657.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,807.80 : 1,815,210.90 = 1,186,812.60 : x
  2. Step 2: Convert to fraction form
    1,207,807.80/1,815,210.90 = 1,186,812.60/x
  3. Step 3: Cross multiply
    1,207,807.80x = 1,815,210.90 × 1,186,812.60
  4. Step 4: Simplify right side
    1,207,807.80x = 2,154,315,167,777.34
  5. Step 5: Solve for x
    x = 2,154,315,167,777.34/1,207,807.80
  6. Step 6: Final answer
    x = 1,783,657.27

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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.