Home / 1,557,407.70-2,336,111.55-1,242,479.70

Finding the Fourth Proportional to 1,557,407.70, 2,336,111.55 and 1,242,479.70

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Solution

The fourth proportional to 1,557,407.70, 2,336,111.55 and 1,242,479.70 is: 1,863,719.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,407.70 : 2,336,111.55 = 1,242,479.70 : x
  2. Step 2: Convert to fraction form
    1,557,407.70/2,336,111.55 = 1,242,479.70/x
  3. Step 3: Cross multiply
    1,557,407.70x = 2,336,111.55 × 1,242,479.70
  4. Step 4: Simplify right side
    1,557,407.70x = 2,902,571,177,810.53
  5. Step 5: Solve for x
    x = 2,902,571,177,810.53/1,557,407.70
  6. Step 6: Final answer
    x = 1,863,719.55

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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.