Finding the Fourth Proportional to 498,998.13, 688,618.02 and 272,643.63
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Solution
The fourth proportional to 498,998.13, 688,618.02 and 272,643.63 is: 376,248.54
Step by Step Solution
- Step 1: Write the proportion equation
498,998.13 : 688,618.02 = 272,643.63 : x - Step 2: Convert to fraction form
498,998.13/688,618.02 = 272,643.63/x - Step 3: Cross multiply
498,998.13x = 688,618.02 × 272,643.63 - Step 4: Simplify right side
498,998.13x = 187,747,316,656.21 - Step 5: Solve for x
x = 187,747,316,656.21/498,998.13 - Step 6: Final answer
x = 376,248.54
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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.