Home / 1,678,055.36-2,515,397.63-539,981.15

Finding the Fourth Proportional to 1,678,055.36, 2,515,397.63 and 539,981.15

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Solution

The fourth proportional to 1,678,055.36, 2,515,397.63 and 539,981.15 is: 809,429.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,055.36 : 2,515,397.63 = 539,981.15 : x
  2. Step 2: Convert to fraction form
    1,678,055.36/2,515,397.63 = 539,981.15/x
  3. Step 3: Cross multiply
    1,678,055.36x = 2,515,397.63 × 539,981.15
  4. Step 4: Simplify right side
    1,678,055.36x = 1,358,267,289,677.78
  5. Step 5: Solve for x
    x = 1,358,267,289,677.78/1,678,055.36
  6. Step 6: Final answer
    x = 809,429.37

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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.