Finding the Fourth Proportional to 905,489.62, 1,249,303.18 and 542,781.14
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Solution
The fourth proportional to 905,489.62, 1,249,303.18 and 542,781.14 is: 748,874.63
Step by Step Solution
- Step 1: Write the proportion equation
905,489.62 : 1,249,303.18 = 542,781.14 : x - Step 2: Convert to fraction form
905,489.62/1,249,303.18 = 542,781.14/x - Step 3: Cross multiply
905,489.62x = 1,249,303.18 × 542,781.14 - Step 4: Simplify right side
905,489.62x = 678,098,204,246.03 - Step 5: Solve for x
x = 678,098,204,246.03/905,489.62 - Step 6: Final answer
x = 748,874.63
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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.