Finding the Fourth Proportional to 495,931.11, 684,377.34 and 278,139.74
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Solution
The fourth proportional to 495,931.11, 684,377.34 and 278,139.74 is: 383,828.58
Step by Step Solution
- Step 1: Write the proportion equation
495,931.11 : 684,377.34 = 278,139.74 : x - Step 2: Convert to fraction form
495,931.11/684,377.34 = 278,139.74/x - Step 3: Cross multiply
495,931.11x = 684,377.34 × 278,139.74 - Step 4: Simplify right side
495,931.11x = 190,352,533,080.38 - Step 5: Solve for x
x = 190,352,533,080.38/495,931.11 - Step 6: Final answer
x = 383,828.58
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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.