Home / 849,420.74-1,172,200.79-467,447.52

Finding the Fourth Proportional to 849,420.74, 1,172,200.79 and 467,447.52

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Solution

The fourth proportional to 849,420.74, 1,172,200.79 and 467,447.52 is: 645,077.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,420.74 : 1,172,200.79 = 467,447.52 : x
  2. Step 2: Convert to fraction form
    849,420.74/1,172,200.79 = 467,447.52/x
  3. Step 3: Cross multiply
    849,420.74x = 1,172,200.79 × 467,447.52
  4. Step 4: Simplify right side
    849,420.74x = 547,942,352,227.54
  5. Step 5: Solve for x
    x = 547,942,352,227.54/849,420.74
  6. Step 6: Final answer
    x = 645,077.67

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1.5x scale

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.