Finding the Fourth Proportional to 905,490.35, 1,249,304.18 and 542,781.87
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Solution
The fourth proportional to 905,490.35, 1,249,304.18 and 542,781.87 is: 748,875.63
Step by Step Solution
- Step 1: Write the proportion equation
905,490.35 : 1,249,304.18 = 542,781.87 : x - Step 2: Convert to fraction form
905,490.35/1,249,304.18 = 542,781.87/x - Step 3: Cross multiply
905,490.35x = 1,249,304.18 × 542,781.87 - Step 4: Simplify right side
905,490.35x = 678,099,659,019.22 - Step 5: Solve for x
x = 678,099,659,019.22/905,490.35 - Step 6: Final answer
x = 748,875.63
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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.