Home / 1,478,051.40-2,216,558.70-767,843.40

Finding the Fourth Proportional to 1,478,051.40, 2,216,558.70 and 767,843.40

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Solution

The fourth proportional to 1,478,051.40, 2,216,558.70 and 767,843.40 is: 1,151,495.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,051.40 : 2,216,558.70 = 767,843.40 : x
  2. Step 2: Convert to fraction form
    1,478,051.40/2,216,558.70 = 767,843.40/x
  3. Step 3: Cross multiply
    1,478,051.40x = 2,216,558.70 × 767,843.40
  4. Step 4: Simplify right side
    1,478,051.40x = 1,701,969,968,507.58
  5. Step 5: Solve for x
    x = 1,701,969,968,507.58/1,478,051.40
  6. Step 6: Final answer
    x = 1,151,495.79

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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.