Home / 1,211,817.60-1,817,726.40-788,803.20

Finding the Fourth Proportional to 1,211,817.60, 1,817,726.40 and 788,803.20

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Solution

The fourth proportional to 1,211,817.60, 1,817,726.40 and 788,803.20 is: 1,183,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,817.60 : 1,817,726.40 = 788,803.20 : x
  2. Step 2: Convert to fraction form
    1,211,817.60/1,817,726.40 = 788,803.20/x
  3. Step 3: Cross multiply
    1,211,817.60x = 1,817,726.40 × 788,803.20
  4. Step 4: Simplify right side
    1,211,817.60x = 1,433,828,401,044.48
  5. Step 5: Solve for x
    x = 1,433,828,401,044.48/1,211,817.60
  6. Step 6: Final answer
    x = 1,183,204.80

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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.