Home / 831,786.60-1,245,347.10-808,458.60

Finding the Fourth Proportional to 831,786.60, 1,245,347.10 and 808,458.60

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Solution

The fourth proportional to 831,786.60, 1,245,347.10 and 808,458.60 is: 1,210,420.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,786.60 : 1,245,347.10 = 808,458.60 : x
  2. Step 2: Convert to fraction form
    831,786.60/1,245,347.10 = 808,458.60/x
  3. Step 3: Cross multiply
    831,786.60x = 1,245,347.10 × 808,458.60
  4. Step 4: Simplify right side
    831,786.60x = 1,006,811,572,980.06
  5. Step 5: Solve for x
    x = 1,006,811,572,980.06/831,786.60
  6. Step 6: Final answer
    x = 1,210,420.52

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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.