Home / 935,072.15-1,290,405.47-505,351.26

Finding the Fourth Proportional to 935,072.15, 1,290,405.47 and 505,351.26

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Solution

The fourth proportional to 935,072.15, 1,290,405.47 and 505,351.26 is: 697,387.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,072.15 : 1,290,405.47 = 505,351.26 : x
  2. Step 2: Convert to fraction form
    935,072.15/1,290,405.47 = 505,351.26/x
  3. Step 3: Cross multiply
    935,072.15x = 1,290,405.47 × 505,351.26
  4. Step 4: Simplify right side
    935,072.15x = 652,108,027,648.64
  5. Step 5: Solve for x
    x = 652,108,027,648.64/935,072.15
  6. Step 6: Final answer
    x = 697,387.93

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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.