Home / 1,396,392.60-1,927,008.59-776,181.51

Finding the Fourth Proportional to 1,396,392.60, 1,927,008.59 and 776,181.51

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Solution

The fourth proportional to 1,396,392.60, 1,927,008.59 and 776,181.51 is: 1,071,123.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,392.60 : 1,927,008.59 = 776,181.51 : x
  2. Step 2: Convert to fraction form
    1,396,392.60/1,927,008.59 = 776,181.51/x
  3. Step 3: Cross multiply
    1,396,392.60x = 1,927,008.59 × 776,181.51
  4. Step 4: Simplify right side
    1,396,392.60x = 1,495,708,433,288.26
  5. Step 5: Solve for x
    x = 1,495,708,433,288.26/1,396,392.60
  6. Step 6: Final answer
    x = 1,071,123.14

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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.