Finding the Fourth Proportional to 926,515.70, 1,387,963.54 and 638,276.48
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Solution
The fourth proportional to 926,515.70, 1,387,963.54 and 638,276.48 is: 956,167.80
Step by Step Solution
- Step 1: Write the proportion equation
926,515.70 : 1,387,963.54 = 638,276.48 : x - Step 2: Convert to fraction form
926,515.70/1,387,963.54 = 638,276.48/x - Step 3: Cross multiply
926,515.70x = 1,387,963.54 × 638,276.48 - Step 4: Simplify right side
926,515.70x = 885,904,482,679.54 - Step 5: Solve for x
x = 885,904,482,679.54/926,515.70 - Step 6: Final answer
x = 956,167.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.