Home / 1,478,071.05-2,216,417.61-767,908.41

Finding the Fourth Proportional to 1,478,071.05, 2,216,417.61 and 767,908.41

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Solution

The fourth proportional to 1,478,071.05, 2,216,417.61 and 767,908.41 is: 1,151,504.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,071.05 : 2,216,417.61 = 767,908.41 : x
  2. Step 2: Convert to fraction form
    1,478,071.05/2,216,417.61 = 767,908.41/x
  3. Step 3: Cross multiply
    1,478,071.05x = 2,216,417.61 × 767,908.41
  4. Step 4: Simplify right side
    1,478,071.05x = 1,702,005,722,791.10
  5. Step 5: Solve for x
    x = 1,702,005,722,791.10/1,478,071.05
  6. Step 6: Final answer
    x = 1,151,504.67

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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.