Home / 1,617,131.79-2,231,602.76-891,963.92

Finding the Fourth Proportional to 1,617,131.79, 2,231,602.76 and 891,963.92

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Solution

The fourth proportional to 1,617,131.79, 2,231,602.76 and 891,963.92 is: 1,230,888.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617,131.79 : 2,231,602.76 = 891,963.92 : x
  2. Step 2: Convert to fraction form
    1,617,131.79/2,231,602.76 = 891,963.92/x
  3. Step 3: Cross multiply
    1,617,131.79x = 2,231,602.76 × 891,963.92
  4. Step 4: Simplify right side
    1,617,131.79x = 1,990,509,153,501.34
  5. Step 5: Solve for x
    x = 1,990,509,153,501.34/1,617,131.79
  6. Step 6: Final answer
    x = 1,230,888.64

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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.