Finding the Fourth Proportional to 2,913,691.80, 4,370,537.70 and 891,931.80
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Solution
The fourth proportional to 2,913,691.80, 4,370,537.70 and 891,931.80 is: 1,337,897.70
Step by Step Solution
- Step 1: Write the proportion equation
2,913,691.80 : 4,370,537.70 = 891,931.80 : x - Step 2: Convert to fraction form
2,913,691.80/4,370,537.70 = 891,931.80/x - Step 3: Cross multiply
2,913,691.80x = 4,370,537.70 × 891,931.80 - Step 4: Simplify right side
2,913,691.80x = 3,898,221,557,728.86 - Step 5: Solve for x
x = 3,898,221,557,728.86/2,913,691.80 - Step 6: Final answer
x = 1,337,897.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.