Finding the Fourth Proportional to 729,518.64, 1,006,603.01 and 512,390.75
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Solution
The fourth proportional to 729,518.64, 1,006,603.01 and 512,390.75 is: 707,006.02
Step by Step Solution
- Step 1: Write the proportion equation
729,518.64 : 1,006,603.01 = 512,390.75 : x - Step 2: Convert to fraction form
729,518.64/1,006,603.01 = 512,390.75/x - Step 3: Cross multiply
729,518.64x = 1,006,603.01 × 512,390.75 - Step 4: Simplify right side
729,518.64x = 515,774,071,200.71 - Step 5: Solve for x
x = 515,774,071,200.71/729,518.64 - Step 6: Final answer
x = 707,006.02
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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.