Finding the Fourth Proportional to 1,319,306.68, 1,820,646.72 and 715,694.68
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Solution
The fourth proportional to 1,319,306.68, 1,820,646.72 and 715,694.68 is: 987,660.56
Step by Step Solution
- Step 1: Write the proportion equation
1,319,306.68 : 1,820,646.72 = 715,694.68 : x - Step 2: Convert to fraction form
1,319,306.68/1,820,646.72 = 715,694.68/x - Step 3: Cross multiply
1,319,306.68x = 1,820,646.72 × 715,694.68 - Step 4: Simplify right side
1,319,306.68x = 1,303,027,171,663.45 - Step 5: Solve for x
x = 1,303,027,171,663.45/1,319,306.68 - Step 6: Final answer
x = 987,660.56
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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.