Finding the Fourth Proportional to 905,672.52, 1,249,841.06 and 497,812.08
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Solution
The fourth proportional to 905,672.52, 1,249,841.06 and 497,812.08 is: 686,987.81
Step by Step Solution
- Step 1: Write the proportion equation
905,672.52 : 1,249,841.06 = 497,812.08 : x - Step 2: Convert to fraction form
905,672.52/1,249,841.06 = 497,812.08/x - Step 3: Cross multiply
905,672.52x = 1,249,841.06 × 497,812.08 - Step 4: Simplify right side
905,672.52x = 622,185,977,748.01 - Step 5: Solve for x
x = 622,185,977,748.01/905,672.52 - Step 6: Final answer
x = 686,987.81
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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.