Home / 1,442,148.96-1,990,431.80-926,547.39

Finding the Fourth Proportional to 1,442,148.96, 1,990,431.80 and 926,547.39

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Solution

The fourth proportional to 1,442,148.96, 1,990,431.80 and 926,547.39 is: 1,278,806.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,148.96 : 1,990,431.80 = 926,547.39 : x
  2. Step 2: Convert to fraction form
    1,442,148.96/1,990,431.80 = 926,547.39/x
  3. Step 3: Cross multiply
    1,442,148.96x = 1,990,431.80 × 926,547.39
  4. Step 4: Simplify right side
    1,442,148.96x = 1,844,229,389,263.00
  5. Step 5: Solve for x
    x = 1,844,229,389,263.00/1,442,148.96
  6. Step 6: Final answer
    x = 1,278,806.45

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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.