Home / 1,018,128.69-1,527,389.46-386,993.16

Finding the Fourth Proportional to 1,018,128.69, 1,527,389.46 and 386,993.16

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Solution

The fourth proportional to 1,018,128.69, 1,527,389.46 and 386,993.16 is: 580,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,128.69 : 1,527,389.46 = 386,993.16 : x
  2. Step 2: Convert to fraction form
    1,018,128.69/1,527,389.46 = 386,993.16/x
  3. Step 3: Cross multiply
    1,018,128.69x = 1,527,389.46 × 386,993.16
  4. Step 4: Simplify right side
    1,018,128.69x = 591,089,273,676.09
  5. Step 5: Solve for x
    x = 591,089,273,676.09/1,018,128.69
  6. Step 6: Final answer
    x = 580,564.40

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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.