Home / 1,283,129.30-1,770,598.47-766,780.72

Finding the Fourth Proportional to 1,283,129.30, 1,770,598.47 and 766,780.72

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Solution

The fourth proportional to 1,283,129.30, 1,770,598.47 and 766,780.72 is: 1,058,085.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,129.30 : 1,770,598.47 = 766,780.72 : x
  2. Step 2: Convert to fraction form
    1,283,129.30/1,770,598.47 = 766,780.72/x
  3. Step 3: Cross multiply
    1,283,129.30x = 1,770,598.47 × 766,780.72
  4. Step 4: Simplify right side
    1,283,129.30x = 1,357,660,760,804.51
  5. Step 5: Solve for x
    x = 1,357,660,760,804.51/1,283,129.30
  6. Step 6: Final answer
    x = 1,058,085.70

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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.