Home / 778,830.60-1,166,277.60-621,366.60

Finding the Fourth Proportional to 778,830.60, 1,166,277.60 and 621,366.60

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Solution

The fourth proportional to 778,830.60, 1,166,277.60 and 621,366.60 is: 930,479.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,830.60 : 1,166,277.60 = 621,366.60 : x
  2. Step 2: Convert to fraction form
    778,830.60/1,166,277.60 = 621,366.60/x
  3. Step 3: Cross multiply
    778,830.60x = 1,166,277.60 × 621,366.60
  4. Step 4: Simplify right side
    778,830.60x = 724,685,946,968.16
  5. Step 5: Solve for x
    x = 724,685,946,968.16/778,830.60
  6. Step 6: Final answer
    x = 930,479.55

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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.