Finding the Fourth Proportional to 498,956.68, 688,364.76 and 307,637.92
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Solution
The fourth proportional to 498,956.68, 688,364.76 and 307,637.92 is: 424,419.82
Step by Step Solution
- Step 1: Write the proportion equation
498,956.68 : 688,364.76 = 307,637.92 : x - Step 2: Convert to fraction form
498,956.68/688,364.76 = 307,637.92/x - Step 3: Cross multiply
498,956.68x = 688,364.76 × 307,637.92 - Step 4: Simplify right side
498,956.68x = 211,767,102,967.70 - Step 5: Solve for x
x = 211,767,102,967.70/498,956.68 - Step 6: Final answer
x = 424,419.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.