Home / 920,463.96-1,380,054.02-407,850.30

Finding the Fourth Proportional to 920,463.96, 1,380,054.02 and 407,850.30

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Solution

The fourth proportional to 920,463.96, 1,380,054.02 and 407,850.30 is: 611,491.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,463.96 : 1,380,054.02 = 407,850.30 : x
  2. Step 2: Convert to fraction form
    920,463.96/1,380,054.02 = 407,850.30/x
  3. Step 3: Cross multiply
    920,463.96x = 1,380,054.02 × 407,850.30
  4. Step 4: Simplify right side
    920,463.96x = 562,855,444,033.95
  5. Step 5: Solve for x
    x = 562,855,444,033.95/920,463.96
  6. Step 6: Final answer
    x = 611,491.02

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Double scale
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Similar ratio
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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.