Home / 1,423,808.80-1,964,856.96-779,228.68

Finding the Fourth Proportional to 1,423,808.80, 1,964,856.96 and 779,228.68

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Solution

The fourth proportional to 1,423,808.80, 1,964,856.96 and 779,228.68 is: 1,075,336.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,808.80 : 1,964,856.96 = 779,228.68 : x
  2. Step 2: Convert to fraction form
    1,423,808.80/1,964,856.96 = 779,228.68/x
  3. Step 3: Cross multiply
    1,423,808.80x = 1,964,856.96 × 779,228.68
  4. Step 4: Simplify right side
    1,423,808.80x = 1,531,072,895,329.61
  5. Step 5: Solve for x
    x = 1,531,072,895,329.61/1,423,808.80
  6. Step 6: Final answer
    x = 1,075,336.02

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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.