Home / 1,556,956.62-2,148,551.40-912,805.83

Finding the Fourth Proportional to 1,556,956.62, 2,148,551.40 and 912,805.83

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Solution

The fourth proportional to 1,556,956.62, 2,148,551.40 and 912,805.83 is: 1,259,643.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,956.62 : 2,148,551.40 = 912,805.83 : x
  2. Step 2: Convert to fraction form
    1,556,956.62/2,148,551.40 = 912,805.83/x
  3. Step 3: Cross multiply
    1,556,956.62x = 2,148,551.40 × 912,805.83
  4. Step 4: Simplify right side
    1,556,956.62x = 1,961,210,243,974.66
  5. Step 5: Solve for x
    x = 1,961,210,243,974.66/1,556,956.62
  6. Step 6: Final answer
    x = 1,259,643.47

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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.