Home / 1,442,208.30-1,990,166.67-788,705.34

Finding the Fourth Proportional to 1,442,208.30, 1,990,166.67 and 788,705.34

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Solution

The fourth proportional to 1,442,208.30, 1,990,166.67 and 788,705.34 is: 1,088,369.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,208.30 : 1,990,166.67 = 788,705.34 : x
  2. Step 2: Convert to fraction form
    1,442,208.30/1,990,166.67 = 788,705.34/x
  3. Step 3: Cross multiply
    1,442,208.30x = 1,990,166.67 × 788,705.34
  4. Step 4: Simplify right side
    1,442,208.30x = 1,569,655,080,119.02
  5. Step 5: Solve for x
    x = 1,569,655,080,119.02/1,442,208.30
  6. Step 6: Final answer
    x = 1,088,369.19

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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.