Home / 935,278.12-1,290,683.25-505,558.26

Finding the Fourth Proportional to 935,278.12, 1,290,683.25 and 505,558.26

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Solution

The fourth proportional to 935,278.12, 1,290,683.25 and 505,558.26 is: 697,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,278.12 : 1,290,683.25 = 505,558.26 : x
  2. Step 2: Convert to fraction form
    935,278.12/1,290,683.25 = 505,558.26/x
  3. Step 3: Cross multiply
    935,278.12x = 1,290,683.25 × 505,558.26
  4. Step 4: Simplify right side
    935,278.12x = 652,515,578,081.15
  5. Step 5: Solve for x
    x = 652,515,578,081.15/935,278.12
  6. Step 6: Final answer
    x = 697,670.10

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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.