Home / 856,668.30-1,283,868.45-456,447.30

Finding the Fourth Proportional to 856,668.30, 1,283,868.45 and 456,447.30

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Solution

The fourth proportional to 856,668.30, 1,283,868.45 and 456,447.30 is: 684,066.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,668.30 : 1,283,868.45 = 456,447.30 : x
  2. Step 2: Convert to fraction form
    856,668.30/1,283,868.45 = 456,447.30/x
  3. Step 3: Cross multiply
    856,668.30x = 1,283,868.45 × 456,447.30
  4. Step 4: Simplify right side
    856,668.30x = 586,018,287,557.69
  5. Step 5: Solve for x
    x = 586,018,287,557.69/856,668.30
  6. Step 6: Final answer
    x = 684,066.74

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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.