Home / 1,423,569.20-1,964,525.45-778,989.45

Finding the Fourth Proportional to 1,423,569.20, 1,964,525.45 and 778,989.45

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Solution

The fourth proportional to 1,423,569.20, 1,964,525.45 and 778,989.45 is: 1,075,005.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,569.20 : 1,964,525.45 = 778,989.45 : x
  2. Step 2: Convert to fraction form
    1,423,569.20/1,964,525.45 = 778,989.45/x
  3. Step 3: Cross multiply
    1,423,569.20x = 1,964,525.45 × 778,989.45
  4. Step 4: Simplify right side
    1,423,569.20x = 1,530,344,607,660.34
  5. Step 5: Solve for x
    x = 1,530,344,607,660.34/1,423,569.20
  6. Step 6: Final answer
    x = 1,075,005.42

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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.