Home / 717,247-1,075,063.11-312,779.58

Finding the Fourth Proportional to 717,247, 1,075,063.11 and 312,779.58

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Solution

The fourth proportional to 717,247, 1,075,063.11 and 312,779.58 is: 468,817.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,247 : 1,075,063.11 = 312,779.58 : x
  2. Step 2: Convert to fraction form
    717,247/1,075,063.11 = 312,779.58/x
  3. Step 3: Cross multiply
    717,247x = 1,075,063.11 × 312,779.58
  4. Step 4: Simplify right side
    717,247x = 336,257,788,019.29
  5. Step 5: Solve for x
    x = 336,257,788,019.29/717,247
  6. Step 6: Final answer
    x = 468,817.28

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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.