Home / 1,479,981.51-2,219,583.47-638,346.15

Finding the Fourth Proportional to 1,479,981.51, 2,219,583.47 and 638,346.15

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Solution

The fourth proportional to 1,479,981.51, 2,219,583.47 and 638,346.15 is: 957,351.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479,981.51 : 2,219,583.47 = 638,346.15 : x
  2. Step 2: Convert to fraction form
    1,479,981.51/2,219,583.47 = 638,346.15/x
  3. Step 3: Cross multiply
    1,479,981.51x = 2,219,583.47 × 638,346.15
  4. Step 4: Simplify right side
    1,479,981.51x = 1,416,862,559,486.41
  5. Step 5: Solve for x
    x = 1,416,862,559,486.41/1,479,981.51
  6. Step 6: Final answer
    x = 957,351.53

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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.