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Finding the Fourth Proportional to 449,360.32, 620,035.05 and 255,756.59

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Solution

The fourth proportional to 449,360.32, 620,035.05 and 255,756.59 is: 352,897.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,360.32 : 620,035.05 = 255,756.59 : x
  2. Step 2: Convert to fraction form
    449,360.32/620,035.05 = 255,756.59/x
  3. Step 3: Cross multiply
    449,360.32x = 620,035.05 × 255,756.59
  4. Step 4: Simplify right side
    449,360.32x = 158,578,050,068.48
  5. Step 5: Solve for x
    x = 158,578,050,068.48/449,360.32
  6. Step 6: Final answer
    x = 352,897.31

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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.