Home / 1,313,894.40-1,970,841.60-427,430.40

Finding the Fourth Proportional to 1,313,894.40, 1,970,841.60 and 427,430.40

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Solution

The fourth proportional to 1,313,894.40, 1,970,841.60 and 427,430.40 is: 641,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,894.40 : 1,970,841.60 = 427,430.40 : x
  2. Step 2: Convert to fraction form
    1,313,894.40/1,970,841.60 = 427,430.40/x
  3. Step 3: Cross multiply
    1,313,894.40x = 1,970,841.60 × 427,430.40
  4. Step 4: Simplify right side
    1,313,894.40x = 842,397,613,424.64
  5. Step 5: Solve for x
    x = 842,397,613,424.64/1,313,894.40
  6. Step 6: Final answer
    x = 641,145.60

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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.