Home / 1,678,990.36-2,316,939.24-915,027.52

Finding the Fourth Proportional to 1,678,990.36, 2,316,939.24 and 915,027.52

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Solution

The fourth proportional to 1,678,990.36, 2,316,939.24 and 915,027.52 is: 1,262,701.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,990.36 : 2,316,939.24 = 915,027.52 : x
  2. Step 2: Convert to fraction form
    1,678,990.36/2,316,939.24 = 915,027.52/x
  3. Step 3: Cross multiply
    1,678,990.36x = 2,316,939.24 × 915,027.52
  4. Step 4: Simplify right side
    1,678,990.36x = 2,120,063,166,767.89
  5. Step 5: Solve for x
    x = 2,120,063,166,767.89/1,678,990.36
  6. Step 6: Final answer
    x = 1,262,701.21

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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.