Finding the Fourth Proportional to 891,439.16, 1,230,178.71 and 483,539.96
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Solution
The fourth proportional to 891,439.16, 1,230,178.71 and 483,539.96 is: 667,281.17
Step by Step Solution
- Step 1: Write the proportion equation
891,439.16 : 1,230,178.71 = 483,539.96 : x - Step 2: Convert to fraction form
891,439.16/1,230,178.71 = 483,539.96/x - Step 3: Cross multiply
891,439.16x = 1,230,178.71 × 483,539.96 - Step 4: Simplify right side
891,439.16x = 594,840,564,226.25 - Step 5: Solve for x
x = 594,840,564,226.25/891,439.16 - Step 6: Final answer
x = 667,281.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.