Finding the Fourth Proportional to 971,420.94, 1,340,569.62 and 535,854.96
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Solution
The fourth proportional to 971,420.94, 1,340,569.62 and 535,854.96 is: 739,484.66
Step by Step Solution
- Step 1: Write the proportion equation
971,420.94 : 1,340,569.62 = 535,854.96 : x - Step 2: Convert to fraction form
971,420.94/1,340,569.62 = 535,854.96/x - Step 3: Cross multiply
971,420.94x = 1,340,569.62 × 535,854.96 - Step 4: Simplify right side
971,420.94x = 718,350,880,102.32 - Step 5: Solve for x
x = 718,350,880,102.32/971,420.94 - Step 6: Final answer
x = 739,484.66
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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.