Home / 772,043.24-1,065,462.15-427,872

Finding the Fourth Proportional to 772,043.24, 1,065,462.15 and 427,872

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Solution

The fourth proportional to 772,043.24, 1,065,462.15 and 427,872 is: 590,486.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,043.24 : 1,065,462.15 = 427,872 : x
  2. Step 2: Convert to fraction form
    772,043.24/1,065,462.15 = 427,872/x
  3. Step 3: Cross multiply
    772,043.24x = 1,065,462.15 × 427,872
  4. Step 4: Simplify right side
    772,043.24x = 455,881,421,044.80
  5. Step 5: Solve for x
    x = 455,881,421,044.80/772,043.24
  6. Step 6: Final answer
    x = 590,486.91

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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.