Home / 1,921,020.93-2,651,159.69-1,094,129.60

Finding the Fourth Proportional to 1,921,020.93, 2,651,159.69 and 1,094,129.60

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Solution

The fourth proportional to 1,921,020.93, 2,651,159.69 and 1,094,129.60 is: 1,509,984.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,020.93 : 2,651,159.69 = 1,094,129.60 : x
  2. Step 2: Convert to fraction form
    1,921,020.93/2,651,159.69 = 1,094,129.60/x
  3. Step 3: Cross multiply
    1,921,020.93x = 2,651,159.69 × 1,094,129.60
  4. Step 4: Simplify right side
    1,921,020.93x = 2,900,712,291,155.82
  5. Step 5: Solve for x
    x = 2,900,712,291,155.82/1,921,020.93
  6. Step 6: Final answer
    x = 1,509,984.74

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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.