Finding the Fourth Proportional to 698,865.80, 1,048,298.70 and 687,201.80
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Solution
The fourth proportional to 698,865.80, 1,048,298.70 and 687,201.80 is: 1,030,802.70
Step by Step Solution
- Step 1: Write the proportion equation
698,865.80 : 1,048,298.70 = 687,201.80 : x - Step 2: Convert to fraction form
698,865.80/1,048,298.70 = 687,201.80/x - Step 3: Cross multiply
698,865.80x = 1,048,298.70 × 687,201.80 - Step 4: Simplify right side
698,865.80x = 720,392,753,577.66 - Step 5: Solve for x
x = 720,392,753,577.66/698,865.80 - Step 6: Final answer
x = 1,030,802.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.