Home / 808,668.36-1,212,985.96-359,267.40

Finding the Fourth Proportional to 808,668.36, 1,212,985.96 and 359,267.40

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Solution

The fourth proportional to 808,668.36, 1,212,985.96 and 359,267.40 is: 538,893.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,668.36 : 1,212,985.96 = 359,267.40 : x
  2. Step 2: Convert to fraction form
    808,668.36/1,212,985.96 = 359,267.40/x
  3. Step 3: Cross multiply
    808,668.36x = 1,212,985.96 × 359,267.40
  4. Step 4: Simplify right side
    808,668.36x = 435,786,312,085.70
  5. Step 5: Solve for x
    x = 435,786,312,085.70/808,668.36
  6. Step 6: Final answer
    x = 538,893.73

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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.