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Finding the Fourth Proportional to 434,539.20, 608,769.60 and 434,539.20

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Solution

The fourth proportional to 434,539.20, 608,769.60 and 434,539.20 is: 608,769.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,539.20 : 608,769.60 = 434,539.20 : x
  2. Step 2: Convert to fraction form
    434,539.20/608,769.60 = 434,539.20/x
  3. Step 3: Cross multiply
    434,539.20x = 608,769.60 × 434,539.20
  4. Step 4: Simplify right side
    434,539.20x = 264,534,254,968.32
  5. Step 5: Solve for x
    x = 264,534,254,968.32/434,539.20
  6. Step 6: Final answer
    x = 608,769.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.