Finding the Fourth Proportional to 704,438.62, 972,125.30 and 402,639.10
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Solution
The fourth proportional to 704,438.62, 972,125.30 and 402,639.10 is: 555,641.96
Step by Step Solution
- Step 1: Write the proportion equation
704,438.62 : 972,125.30 = 402,639.10 : x - Step 2: Convert to fraction form
704,438.62/972,125.30 = 402,639.10/x - Step 3: Cross multiply
704,438.62x = 972,125.30 × 402,639.10 - Step 4: Simplify right side
704,438.62x = 391,415,655,879.23 - Step 5: Solve for x
x = 391,415,655,879.23/704,438.62 - Step 6: Final answer
x = 555,641.96
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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.