Home / 1,915,280.19-2,643,094.67-1,055,821.59

Finding the Fourth Proportional to 1,915,280.19, 2,643,094.67 and 1,055,821.59

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Solution

The fourth proportional to 1,915,280.19, 2,643,094.67 and 1,055,821.59 is: 1,457,038.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,280.19 : 2,643,094.67 = 1,055,821.59 : x
  2. Step 2: Convert to fraction form
    1,915,280.19/2,643,094.67 = 1,055,821.59/x
  3. Step 3: Cross multiply
    1,915,280.19x = 2,643,094.67 × 1,055,821.59
  4. Step 4: Simplify right side
    1,915,280.19x = 2,790,636,416,999.93
  5. Step 5: Solve for x
    x = 2,790,636,416,999.93/1,915,280.19
  6. Step 6: Final answer
    x = 1,457,038.21

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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.