Home / 1,289,802.37-1,934,487.59-391,029.20

Finding the Fourth Proportional to 1,289,802.37, 1,934,487.59 and 391,029.20

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Solution

The fourth proportional to 1,289,802.37, 1,934,487.59 and 391,029.20 is: 586,478.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,802.37 : 1,934,487.59 = 391,029.20 : x
  2. Step 2: Convert to fraction form
    1,289,802.37/1,934,487.59 = 391,029.20/x
  3. Step 3: Cross multiply
    1,289,802.37x = 1,934,487.59 × 391,029.20
  4. Step 4: Simplify right side
    1,289,802.37x = 756,441,137,608.70
  5. Step 5: Solve for x
    x = 756,441,137,608.70/1,289,802.37
  6. Step 6: Final answer
    x = 586,478.33

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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.