Home / 717,011.78-1,075,547.34-211,572.75

Finding the Fourth Proportional to 717,011.78, 1,075,547.34 and 211,572.75

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Solution

The fourth proportional to 717,011.78, 1,075,547.34 and 211,572.75 is: 317,367.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,011.78 : 1,075,547.34 = 211,572.75 : x
  2. Step 2: Convert to fraction form
    717,011.78/1,075,547.34 = 211,572.75/x
  3. Step 3: Cross multiply
    717,011.78x = 1,075,547.34 × 211,572.75
  4. Step 4: Simplify right side
    717,011.78x = 227,556,508,478.99
  5. Step 5: Solve for x
    x = 227,556,508,478.99/717,011.78
  6. Step 6: Final answer
    x = 317,367.88

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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.