Home / 991,717.74-1,368,565.20-562,079.16

Finding the Fourth Proportional to 991,717.74, 1,368,565.20 and 562,079.16

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Solution

The fourth proportional to 991,717.74, 1,368,565.20 and 562,079.16 is: 775,666.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,717.74 : 1,368,565.20 = 562,079.16 : x
  2. Step 2: Convert to fraction form
    991,717.74/1,368,565.20 = 562,079.16/x
  3. Step 3: Cross multiply
    991,717.74x = 1,368,565.20 × 562,079.16
  4. Step 4: Simplify right side
    991,717.74x = 769,241,978,021.23
  5. Step 5: Solve for x
    x = 769,241,978,021.23/991,717.74
  6. Step 6: Final answer
    x = 775,666.25

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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.