Finding the Fourth Proportional to 887,056.20, 1,224,138.02 and 479,158.02
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Solution
The fourth proportional to 887,056.20, 1,224,138.02 and 479,158.02 is: 661,238.32
Step by Step Solution
- Step 1: Write the proportion equation
887,056.20 : 1,224,138.02 = 479,158.02 : x - Step 2: Convert to fraction form
887,056.20/1,224,138.02 = 479,158.02/x - Step 3: Cross multiply
887,056.20x = 1,224,138.02 × 479,158.02 - Step 4: Simplify right side
887,056.20x = 586,555,547,474.13 - Step 5: Solve for x
x = 586,555,547,474.13/887,056.20 - Step 6: Final answer
x = 661,238.32
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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.