Home / 1,778,697.50-2,668,053-430,857.50

Finding the Fourth Proportional to 1,778,697.50, 2,668,053 and 430,857.50

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Solution

The fourth proportional to 1,778,697.50, 2,668,053 and 430,857.50 is: 646,287.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,697.50 : 2,668,053 = 430,857.50 : x
  2. Step 2: Convert to fraction form
    1,778,697.50/2,668,053 = 430,857.50/x
  3. Step 3: Cross multiply
    1,778,697.50x = 2,668,053 × 430,857.50
  4. Step 4: Simplify right side
    1,778,697.50x = 1,149,550,645,447.50
  5. Step 5: Solve for x
    x = 1,149,550,645,447.50/1,778,697.50
  6. Step 6: Final answer
    x = 646,287.89

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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.