Finding the Fourth Proportional to 493,187.68, 679,979.36 and 402,451.48
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Solution
The fourth proportional to 493,187.68, 679,979.36 and 402,451.48 is: 554,877.40
Step by Step Solution
- Step 1: Write the proportion equation
493,187.68 : 679,979.36 = 402,451.48 : x - Step 2: Convert to fraction form
493,187.68/679,979.36 = 402,451.48/x - Step 3: Cross multiply
493,187.68x = 679,979.36 × 402,451.48 - Step 4: Simplify right side
493,187.68x = 273,658,699,801.45 - Step 5: Solve for x
x = 273,658,699,801.45/493,187.68 - Step 6: Final answer
x = 554,877.40
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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.