Home / 760,495.80-1,140,311.76-310,690.05

Finding the Fourth Proportional to 760,495.80, 1,140,311.76 and 310,690.05

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Solution

The fourth proportional to 760,495.80, 1,140,311.76 and 310,690.05 is: 465,858.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,495.80 : 1,140,311.76 = 310,690.05 : x
  2. Step 2: Convert to fraction form
    760,495.80/1,140,311.76 = 310,690.05/x
  3. Step 3: Cross multiply
    760,495.80x = 1,140,311.76 × 310,690.05
  4. Step 4: Simplify right side
    760,495.80x = 354,283,517,729.99
  5. Step 5: Solve for x
    x = 354,283,517,729.99/760,495.80
  6. Step 6: Final answer
    x = 465,858.61

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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.