Finding the Fourth Proportional to 898,397.68, 1,239,789.54 and 495,989.68
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Solution
The fourth proportional to 898,397.68, 1,239,789.54 and 495,989.68 is: 684,466.17
Step by Step Solution
- Step 1: Write the proportion equation
898,397.68 : 1,239,789.54 = 495,989.68 : x - Step 2: Convert to fraction form
898,397.68/1,239,789.54 = 495,989.68/x - Step 3: Cross multiply
898,397.68x = 1,239,789.54 × 495,989.68 - Step 4: Simplify right side
898,397.68x = 614,922,817,211.95 - Step 5: Solve for x
x = 614,922,817,211.95/898,397.68 - Step 6: Final answer
x = 684,466.17
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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.