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Finding the Fourth Proportional to 540,728.80, 746,210.58 and 299,027.63

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Solution

The fourth proportional to 540,728.80, 746,210.58 and 299,027.63 is: 412,660.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,728.80 : 746,210.58 = 299,027.63 : x
  2. Step 2: Convert to fraction form
    540,728.80/746,210.58 = 299,027.63/x
  3. Step 3: Cross multiply
    540,728.80x = 746,210.58 × 299,027.63
  4. Step 4: Simplify right side
    540,728.80x = 223,137,581,962.50
  5. Step 5: Solve for x
    x = 223,137,581,962.50/540,728.80
  6. Step 6: Final answer
    x = 412,660.81

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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.