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Finding the Fourth Proportional to 603,457.80, 905,769.90 and 304,276.20

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Solution

The fourth proportional to 603,457.80, 905,769.90 and 304,276.20 is: 456,708.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,457.80 : 905,769.90 = 304,276.20 : x
  2. Step 2: Convert to fraction form
    603,457.80/905,769.90 = 304,276.20/x
  3. Step 3: Cross multiply
    603,457.80x = 905,769.90 × 304,276.20
  4. Step 4: Simplify right side
    603,457.80x = 275,604,223,246.38
  5. Step 5: Solve for x
    x = 275,604,223,246.38/603,457.80
  6. Step 6: Final answer
    x = 456,708.36

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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.