Home / 1,423,214.15-1,964,057.66-778,645.10

Finding the Fourth Proportional to 1,423,214.15, 1,964,057.66 and 778,645.10

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Solution

The fourth proportional to 1,423,214.15, 1,964,057.66 and 778,645.10 is: 1,074,542.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,214.15 : 1,964,057.66 = 778,645.10 : x
  2. Step 2: Convert to fraction form
    1,423,214.15/1,964,057.66 = 778,645.10/x
  3. Step 3: Cross multiply
    1,423,214.15x = 1,964,057.66 × 778,645.10
  4. Step 4: Simplify right side
    1,423,214.15x = 1,529,303,859,362.95
  5. Step 5: Solve for x
    x = 1,529,303,859,362.95/1,423,214.15
  6. Step 6: Final answer
    x = 1,074,542.34

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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.