Home / 1,809,876.40-2,716,564.20-912,331.60

Finding the Fourth Proportional to 1,809,876.40, 2,716,564.20 and 912,331.60

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Solution

The fourth proportional to 1,809,876.40, 2,716,564.20 and 912,331.60 is: 1,369,379.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809,876.40 : 2,716,564.20 = 912,331.60 : x
  2. Step 2: Convert to fraction form
    1,809,876.40/2,716,564.20 = 912,331.60/x
  3. Step 3: Cross multiply
    1,809,876.40x = 2,716,564.20 × 912,331.60
  4. Step 4: Simplify right side
    1,809,876.40x = 2,478,407,363,088.72
  5. Step 5: Solve for x
    x = 2,478,407,363,088.72/1,809,876.40
  6. Step 6: Final answer
    x = 1,369,379.35

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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.