Home / 1,005,843.40-1,388,021.63-570,290.05

Finding the Fourth Proportional to 1,005,843.40, 1,388,021.63 and 570,290.05

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Solution

The fourth proportional to 1,005,843.40, 1,388,021.63 and 570,290.05 is: 786,976.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,843.40 : 1,388,021.63 = 570,290.05 : x
  2. Step 2: Convert to fraction form
    1,005,843.40/1,388,021.63 = 570,290.05/x
  3. Step 3: Cross multiply
    1,005,843.40x = 1,388,021.63 × 570,290.05
  4. Step 4: Simplify right side
    1,005,843.40x = 791,574,917,833.67
  5. Step 5: Solve for x
    x = 791,574,917,833.67/1,005,843.40
  6. Step 6: Final answer
    x = 786,976.30

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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.