Home / 772,486.28-1,158,816.90-693,112.76

Finding the Fourth Proportional to 772,486.28, 1,158,816.90 and 693,112.76

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Solution

The fourth proportional to 772,486.28, 1,158,816.90 and 693,112.76 is: 1,039,747.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,486.28 : 1,158,816.90 = 693,112.76 : x
  2. Step 2: Convert to fraction form
    772,486.28/1,158,816.90 = 693,112.76/x
  3. Step 3: Cross multiply
    772,486.28x = 1,158,816.90 × 693,112.76
  4. Step 4: Simplify right side
    772,486.28x = 803,190,779,893.64
  5. Step 5: Solve for x
    x = 803,190,779,893.64/772,486.28
  6. Step 6: Final answer
    x = 1,039,747.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.