Home / 1,488,678.40-2,233,017.60-857,072.80

Finding the Fourth Proportional to 1,488,678.40, 2,233,017.60 and 857,072.80

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Solution

The fourth proportional to 1,488,678.40, 2,233,017.60 and 857,072.80 is: 1,285,609.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,678.40 : 2,233,017.60 = 857,072.80 : x
  2. Step 2: Convert to fraction form
    1,488,678.40/2,233,017.60 = 857,072.80/x
  3. Step 3: Cross multiply
    1,488,678.40x = 2,233,017.60 × 857,072.80
  4. Step 4: Simplify right side
    1,488,678.40x = 1,913,858,646,881.28
  5. Step 5: Solve for x
    x = 1,913,858,646,881.28/1,488,678.40
  6. Step 6: Final answer
    x = 1,285,609.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.