Home / 772,509.93-1,065,955.86-449,971.17

Finding the Fourth Proportional to 772,509.93, 1,065,955.86 and 449,971.17

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Solution

The fourth proportional to 772,509.93, 1,065,955.86 and 449,971.17 is: 620,897.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,509.93 : 1,065,955.86 = 449,971.17 : x
  2. Step 2: Convert to fraction form
    772,509.93/1,065,955.86 = 449,971.17/x
  3. Step 3: Cross multiply
    772,509.93x = 1,065,955.86 × 449,971.17
  4. Step 4: Simplify right side
    772,509.93x = 479,649,405,492.56
  5. Step 5: Solve for x
    x = 479,649,405,492.56/772,509.93
  6. Step 6: Final answer
    x = 620,897.40

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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.