Home / 611,715.63-917,582.67-212,369.10

Finding the Fourth Proportional to 611,715.63, 917,582.67 and 212,369.10

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Solution

The fourth proportional to 611,715.63, 917,582.67 and 212,369.10 is: 318,556.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,715.63 : 917,582.67 = 212,369.10 : x
  2. Step 2: Convert to fraction form
    611,715.63/917,582.67 = 212,369.10/x
  3. Step 3: Cross multiply
    611,715.63x = 917,582.67 × 212,369.10
  4. Step 4: Simplify right side
    611,715.63x = 194,866,205,803.50
  5. Step 5: Solve for x
    x = 194,866,205,803.50/611,715.63
  6. Step 6: Final answer
    x = 318,556.85

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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.