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Finding the Fourth Proportional to 449,445.66, 620,267.67 and 258,518.94

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Solution

The fourth proportional to 449,445.66, 620,267.67 and 258,518.94 is: 356,774.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,445.66 : 620,267.67 = 258,518.94 : x
  2. Step 2: Convert to fraction form
    449,445.66/620,267.67 = 258,518.94/x
  3. Step 3: Cross multiply
    449,445.66x = 620,267.67 × 258,518.94
  4. Step 4: Simplify right side
    449,445.66x = 160,350,940,564.67
  5. Step 5: Solve for x
    x = 160,350,940,564.67/449,445.66
  6. Step 6: Final answer
    x = 356,774.92

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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.