Home / 1,379,894.10-2,065,904.55-1,222,430.10

Finding the Fourth Proportional to 1,379,894.10, 2,065,904.55 and 1,222,430.10

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Solution

The fourth proportional to 1,379,894.10, 2,065,904.55 and 1,222,430.10 is: 1,830,157.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,894.10 : 2,065,904.55 = 1,222,430.10 : x
  2. Step 2: Convert to fraction form
    1,379,894.10/2,065,904.55 = 1,222,430.10/x
  3. Step 3: Cross multiply
    1,379,894.10x = 2,065,904.55 × 1,222,430.10
  4. Step 4: Simplify right side
    1,379,894.10x = 2,525,423,905,646.96
  5. Step 5: Solve for x
    x = 2,525,423,905,646.96/1,379,894.10
  6. Step 6: Final answer
    x = 1,830,157.77

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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.