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Finding the Fourth Proportional to 612,882.82, 845,432.61 and 367,804.90

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Solution

The fourth proportional to 612,882.82, 845,432.61 and 367,804.90 is: 507,363.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,882.82 : 845,432.61 = 367,804.90 : x
  2. Step 2: Convert to fraction form
    612,882.82/845,432.61 = 367,804.90/x
  3. Step 3: Cross multiply
    612,882.82x = 845,432.61 × 367,804.90
  4. Step 4: Simplify right side
    612,882.82x = 310,954,256,577.79
  5. Step 5: Solve for x
    x = 310,954,256,577.79/612,882.82
  6. Step 6: Final answer
    x = 507,363.31

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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.