Home / 957,200.54-1,320,919.75-521,621.67

Finding the Fourth Proportional to 957,200.54, 1,320,919.75 and 521,621.67

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Solution

The fourth proportional to 957,200.54, 1,320,919.75 and 521,621.67 is: 719,828.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,200.54 : 1,320,919.75 = 521,621.67 : x
  2. Step 2: Convert to fraction form
    957,200.54/1,320,919.75 = 521,621.67/x
  3. Step 3: Cross multiply
    957,200.54x = 1,320,919.75 × 521,621.67
  4. Step 4: Simplify right side
    957,200.54x = 689,020,371,536.46
  5. Step 5: Solve for x
    x = 689,020,371,536.46/957,200.54
  6. Step 6: Final answer
    x = 719,828.65

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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.