Finding the Fourth Proportional to 495,781.84, 684,107.72 and 291,711.44
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Solution
The fourth proportional to 495,781.84, 684,107.72 and 291,711.44 is: 402,519.88
Step by Step Solution
- Step 1: Write the proportion equation
495,781.84 : 684,107.72 = 291,711.44 : x - Step 2: Convert to fraction form
495,781.84/684,107.72 = 291,711.44/x - Step 3: Cross multiply
495,781.84x = 684,107.72 × 291,711.44 - Step 4: Simplify right side
495,781.84x = 199,562,048,116.32 - Step 5: Solve for x
x = 199,562,048,116.32/495,781.84 - Step 6: Final answer
x = 402,519.88
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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.