Home / 1,066,478.94-1,600,308.90-638,964.18

Finding the Fourth Proportional to 1,066,478.94, 1,600,308.90 and 638,964.18

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Solution

The fourth proportional to 1,066,478.94, 1,600,308.90 and 638,964.18 is: 958,800.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066,478.94 : 1,600,308.90 = 638,964.18 : x
  2. Step 2: Convert to fraction form
    1,066,478.94/1,600,308.90 = 638,964.18/x
  3. Step 3: Cross multiply
    1,066,478.94x = 1,600,308.90 × 638,964.18
  4. Step 4: Simplify right side
    1,066,478.94x = 1,022,540,064,035.20
  5. Step 5: Solve for x
    x = 1,022,540,064,035.20/1,066,478.94
  6. Step 6: Final answer
    x = 958,800.05

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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.