Home / 817,718.88-1,226,492.04-218,740.50

Finding the Fourth Proportional to 817,718.88, 1,226,492.04 and 218,740.50

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Solution

The fourth proportional to 817,718.88, 1,226,492.04 and 218,740.50 is: 328,087.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,718.88 : 1,226,492.04 = 218,740.50 : x
  2. Step 2: Convert to fraction form
    817,718.88/1,226,492.04 = 218,740.50/x
  3. Step 3: Cross multiply
    817,718.88x = 1,226,492.04 × 218,740.50
  4. Step 4: Simplify right side
    817,718.88x = 268,283,482,075.62
  5. Step 5: Solve for x
    x = 268,283,482,075.62/817,718.88
  6. Step 6: Final answer
    x = 328,087.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.