Home / 963,942.08-1,329,057.60-782,139.20

Finding the Fourth Proportional to 963,942.08, 1,329,057.60 and 782,139.20

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Solution

The fourth proportional to 963,942.08, 1,329,057.60 and 782,139.20 is: 1,078,392.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    963,942.08 : 1,329,057.60 = 782,139.20 : x
  2. Step 2: Convert to fraction form
    963,942.08/1,329,057.60 = 782,139.20/x
  3. Step 3: Cross multiply
    963,942.08x = 1,329,057.60 × 782,139.20
  4. Step 4: Simplify right side
    963,942.08x = 1,039,508,048,017.92
  5. Step 5: Solve for x
    x = 1,039,508,048,017.92/963,942.08
  6. Step 6: Final answer
    x = 1,078,392.64

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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.