Finding the Fourth Proportional to 947,852.66, 1,421,778.99 and 316,766.47
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Solution
The fourth proportional to 947,852.66, 1,421,778.99 and 316,766.47 is: 475,149.71
Step by Step Solution
- Step 1: Write the proportion equation
947,852.66 : 1,421,778.99 = 316,766.47 : x - Step 2: Convert to fraction form
947,852.66/1,421,778.99 = 316,766.47/x - Step 3: Cross multiply
947,852.66x = 1,421,778.99 × 316,766.47 - Step 4: Simplify right side
947,852.66x = 450,371,911,782.47 - Step 5: Solve for x
x = 450,371,911,782.47/947,852.66 - Step 6: Final answer
x = 475,149.71
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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.