Home / 1,397,258.49-1,928,420.92-785,461.65

Finding the Fourth Proportional to 1,397,258.49, 1,928,420.92 and 785,461.65

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Solution

The fourth proportional to 1,397,258.49, 1,928,420.92 and 785,461.65 is: 1,084,051.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,258.49 : 1,928,420.92 = 785,461.65 : x
  2. Step 2: Convert to fraction form
    1,397,258.49/1,928,420.92 = 785,461.65/x
  3. Step 3: Cross multiply
    1,397,258.49x = 1,928,420.92 × 785,461.65
  4. Step 4: Simplify right side
    1,397,258.49x = 1,514,700,671,467.97
  5. Step 5: Solve for x
    x = 1,514,700,671,467.97/1,397,258.49
  6. Step 6: Final answer
    x = 1,084,051.86

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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.