Finding the Fourth Proportional to 654,990.84, 903,838.68 and 368,455.68
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Solution
The fourth proportional to 654,990.84, 903,838.68 and 368,455.68 is: 508,441.45
Step by Step Solution
- Step 1: Write the proportion equation
654,990.84 : 903,838.68 = 368,455.68 : x - Step 2: Convert to fraction form
654,990.84/903,838.68 = 368,455.68/x - Step 3: Cross multiply
654,990.84x = 903,838.68 × 368,455.68 - Step 4: Simplify right side
654,990.84x = 333,024,495,449.70 - Step 5: Solve for x
x = 333,024,495,449.70/654,990.84 - Step 6: Final answer
x = 508,441.45
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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.