Home / 1,423,484.52-1,964,408.64-778,904.72

Finding the Fourth Proportional to 1,423,484.52, 1,964,408.64 and 778,904.72

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Solution

The fourth proportional to 1,423,484.52, 1,964,408.64 and 778,904.72 is: 1,074,888.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,484.52 : 1,964,408.64 = 778,904.72 : x
  2. Step 2: Convert to fraction form
    1,423,484.52/1,964,408.64 = 778,904.72/x
  3. Step 3: Cross multiply
    1,423,484.52x = 1,964,408.64 × 778,904.72
  4. Step 4: Simplify right side
    1,423,484.52x = 1,530,087,161,704.78
  5. Step 5: Solve for x
    x = 1,530,087,161,704.78/1,423,484.52
  6. Step 6: Final answer
    x = 1,074,888.51

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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.