Home / 1,222,184.07-1,686,592.89-678,342.78

Finding the Fourth Proportional to 1,222,184.07, 1,686,592.89 and 678,342.78

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Solution

The fourth proportional to 1,222,184.07, 1,686,592.89 and 678,342.78 is: 936,101.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,184.07 : 1,686,592.89 = 678,342.78 : x
  2. Step 2: Convert to fraction form
    1,222,184.07/1,686,592.89 = 678,342.78/x
  3. Step 3: Cross multiply
    1,222,184.07x = 1,686,592.89 × 678,342.78
  4. Step 4: Simplify right side
    1,222,184.07x = 1,144,088,109,730.83
  5. Step 5: Solve for x
    x = 1,144,088,109,730.83/1,222,184.07
  6. Step 6: Final answer
    x = 936,101.31

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1.5x scale

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.