Finding the Fourth Proportional to 729,679.76, 1,006,881.68 and 423,696.50
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Solution
The fourth proportional to 729,679.76, 1,006,881.68 and 423,696.50 is: 584,656.81
Step by Step Solution
- Step 1: Write the proportion equation
729,679.76 : 1,006,881.68 = 423,696.50 : x - Step 2: Convert to fraction form
729,679.76/1,006,881.68 = 423,696.50/x - Step 3: Cross multiply
729,679.76x = 1,006,881.68 × 423,696.50 - Step 4: Simplify right side
729,679.76x = 426,612,236,577.23 - Step 5: Solve for x
x = 426,612,236,577.23/729,679.76 - Step 6: Final answer
x = 584,656.81
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.