Home / 1,210,750.80-1,814,830.20-411,291.60

Finding the Fourth Proportional to 1,210,750.80, 1,814,830.20 and 411,291.60

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Solution

The fourth proportional to 1,210,750.80, 1,814,830.20 and 411,291.60 is: 616,497.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,750.80 : 1,814,830.20 = 411,291.60 : x
  2. Step 2: Convert to fraction form
    1,210,750.80/1,814,830.20 = 411,291.60/x
  3. Step 3: Cross multiply
    1,210,750.80x = 1,814,830.20 × 411,291.60
  4. Step 4: Simplify right side
    1,210,750.80x = 746,424,416,686.32
  5. Step 5: Solve for x
    x = 746,424,416,686.32/1,210,750.80
  6. Step 6: Final answer
    x = 616,497.15

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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.