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Finding the Fourth Proportional to 434,453.60, 651,680.40 and 329,477.60

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Solution

The fourth proportional to 434,453.60, 651,680.40 and 329,477.60 is: 494,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,453.60 : 651,680.40 = 329,477.60 : x
  2. Step 2: Convert to fraction form
    434,453.60/651,680.40 = 329,477.60/x
  3. Step 3: Cross multiply
    434,453.60x = 651,680.40 × 329,477.60
  4. Step 4: Simplify right side
    434,453.60x = 214,714,094,159.04
  5. Step 5: Solve for x
    x = 214,714,094,159.04/434,453.60
  6. Step 6: Final answer
    x = 494,216.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.