Home / 990,527.25-1,485,718.21-316,427.53

Finding the Fourth Proportional to 990,527.25, 1,485,718.21 and 316,427.53

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Solution

The fourth proportional to 990,527.25, 1,485,718.21 and 316,427.53 is: 474,618.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,527.25 : 1,485,718.21 = 316,427.53 : x
  2. Step 2: Convert to fraction form
    990,527.25/1,485,718.21 = 316,427.53/x
  3. Step 3: Cross multiply
    990,527.25x = 1,485,718.21 × 316,427.53
  4. Step 4: Simplify right side
    990,527.25x = 470,122,143,466.32
  5. Step 5: Solve for x
    x = 470,122,143,466.32/990,527.25
  6. Step 6: Final answer
    x = 474,618.08

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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.