Finding the Fourth Proportional to 729,688.88, 1,007,311.95 and 423,705.66
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Solution
The fourth proportional to 729,688.88, 1,007,311.95 and 423,705.66 is: 584,911.99
Step by Step Solution
- Step 1: Write the proportion equation
729,688.88 : 1,007,311.95 = 423,705.66 : x - Step 2: Convert to fraction form
729,688.88/1,007,311.95 = 423,705.66/x - Step 3: Cross multiply
729,688.88x = 1,007,311.95 × 423,705.66 - Step 4: Simplify right side
729,688.88x = 426,803,774,600.64 - Step 5: Solve for x
x = 426,803,774,600.64/729,688.88 - Step 6: Final answer
x = 584,911.99
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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.