Finding the Fourth Proportional to 1,472,417.20, 2,207,459.40 and 807,569.20
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Solution
The fourth proportional to 1,472,417.20, 2,207,459.40 and 807,569.20 is: 1,210,714.07
Step by Step Solution
- Step 1: Write the proportion equation
1,472,417.20 : 2,207,459.40 = 807,569.20 : x - Step 2: Convert to fraction form
1,472,417.20/2,207,459.40 = 807,569.20/x - Step 3: Cross multiply
1,472,417.20x = 2,207,459.40 × 807,569.20 - Step 4: Simplify right side
1,472,417.20x = 1,782,676,221,690.48 - Step 5: Solve for x
x = 1,782,676,221,690.48/1,472,417.20 - Step 6: Final answer
x = 1,210,714.07
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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.