Finding the Fourth Proportional to 418,784.68, 628,117.71 and 134,437.79
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Solution
The fourth proportional to 418,784.68, 628,117.71 and 134,437.79 is: 201,637.65
Step by Step Solution
- Step 1: Write the proportion equation
418,784.68 : 628,117.71 = 134,437.79 : x - Step 2: Convert to fraction form
418,784.68/628,117.71 = 134,437.79/x - Step 3: Cross multiply
418,784.68x = 628,117.71 × 134,437.79 - Step 4: Simplify right side
418,784.68x = 84,442,756,792.26 - Step 5: Solve for x
x = 84,442,756,792.26/418,784.68 - Step 6: Final answer
x = 201,637.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.