Home / 802,145.10-1,203,217.65-644,681.10

Finding the Fourth Proportional to 802,145.10, 1,203,217.65 and 644,681.10

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Solution

The fourth proportional to 802,145.10, 1,203,217.65 and 644,681.10 is: 967,021.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,145.10 : 1,203,217.65 = 644,681.10 : x
  2. Step 2: Convert to fraction form
    802,145.10/1,203,217.65 = 644,681.10/x
  3. Step 3: Cross multiply
    802,145.10x = 1,203,217.65 × 644,681.10
  4. Step 4: Simplify right side
    802,145.10x = 775,691,678,141.42
  5. Step 5: Solve for x
    x = 775,691,678,141.42/802,145.10
  6. Step 6: Final answer
    x = 967,021.65

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1.5x scale

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.