Home / 1,038,759.12-1,423,093.35-999,914.39

Finding the Fourth Proportional to 1,038,759.12, 1,423,093.35 and 999,914.39

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Solution

The fourth proportional to 1,038,759.12, 1,423,093.35 and 999,914.39 is: 1,369,876.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,759.12 : 1,423,093.35 = 999,914.39 : x
  2. Step 2: Convert to fraction form
    1,038,759.12/1,423,093.35 = 999,914.39/x
  3. Step 3: Cross multiply
    1,038,759.12x = 1,423,093.35 × 999,914.39
  4. Step 4: Simplify right side
    1,038,759.12x = 1,422,971,518,978.31
  5. Step 5: Solve for x
    x = 1,422,971,518,978.31/1,038,759.12
  6. Step 6: Final answer
    x = 1,369,876.32

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.