Home / 1,806,112.90-2,492,459.85-990,314.47

Finding the Fourth Proportional to 1,806,112.90, 2,492,459.85 and 990,314.47

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Solution

The fourth proportional to 1,806,112.90, 2,492,459.85 and 990,314.47 is: 1,366,647.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806,112.90 : 2,492,459.85 = 990,314.47 : x
  2. Step 2: Convert to fraction form
    1,806,112.90/2,492,459.85 = 990,314.47/x
  3. Step 3: Cross multiply
    1,806,112.90x = 2,492,459.85 × 990,314.47
  4. Step 4: Simplify right side
    1,806,112.90x = 2,468,319,055,349.03
  5. Step 5: Solve for x
    x = 2,468,319,055,349.03/1,806,112.90
  6. Step 6: Final answer
    x = 1,366,647.15

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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.