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Finding the Fourth Proportional to 455,763.50, 628,966.59 and 254,572.46

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Solution

The fourth proportional to 455,763.50, 628,966.59 and 254,572.46 is: 351,317.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,763.50 : 628,966.59 = 254,572.46 : x
  2. Step 2: Convert to fraction form
    455,763.50/628,966.59 = 254,572.46/x
  3. Step 3: Cross multiply
    455,763.50x = 628,966.59 × 254,572.46
  4. Step 4: Simplify right side
    455,763.50x = 160,117,572,074.11
  5. Step 5: Solve for x
    x = 160,117,572,074.11/455,763.50
  6. Step 6: Final answer
    x = 351,317.23

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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.