Finding the Fourth Proportional to 1,442,854.01, 1,990,963.50 and 831,204.79
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Solution
The fourth proportional to 1,442,854.01, 1,990,963.50 and 831,204.79 is: 1,146,961.77
Step by Step Solution
- Step 1: Write the proportion equation
1,442,854.01 : 1,990,963.50 = 831,204.79 : x - Step 2: Convert to fraction form
1,442,854.01/1,990,963.50 = 831,204.79/x - Step 3: Cross multiply
1,442,854.01x = 1,990,963.50 × 831,204.79 - Step 4: Simplify right side
1,442,854.01x = 1,654,898,389,820.74 - Step 5: Solve for x
x = 1,654,898,389,820.74/1,442,854.01 - Step 6: Final answer
x = 1,146,961.77
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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.