Home / 830,120.96-1,243,392.88-562,412.80

Finding the Fourth Proportional to 830,120.96, 1,243,392.88 and 562,412.80

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Solution

The fourth proportional to 830,120.96, 1,243,392.88 and 562,412.80 is: 842,407.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,120.96 : 1,243,392.88 = 562,412.80 : x
  2. Step 2: Convert to fraction form
    830,120.96/1,243,392.88 = 562,412.80/x
  3. Step 3: Cross multiply
    830,120.96x = 1,243,392.88 × 562,412.80
  4. Step 4: Simplify right side
    830,120.96x = 699,300,071,140.86
  5. Step 5: Solve for x
    x = 699,300,071,140.86/830,120.96
  6. Step 6: Final answer
    x = 842,407.44

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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.