Home / 772,005.03-1,065,409.47-427,833.72

Finding the Fourth Proportional to 772,005.03, 1,065,409.47 and 427,833.72

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Solution

The fourth proportional to 772,005.03, 1,065,409.47 and 427,833.72 is: 590,434.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,005.03 : 1,065,409.47 = 427,833.72 : x
  2. Step 2: Convert to fraction form
    772,005.03/1,065,409.47 = 427,833.72/x
  3. Step 3: Cross multiply
    772,005.03x = 1,065,409.47 × 427,833.72
  4. Step 4: Simplify right side
    772,005.03x = 455,818,096,873.33
  5. Step 5: Solve for x
    x = 455,818,096,873.33/772,005.03
  6. Step 6: Final answer
    x = 590,434.10

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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.