Finding the Fourth Proportional to 911,946.88, 1,368,621.52 and 865,117.74
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Solution
The fourth proportional to 911,946.88, 1,368,621.52 and 865,117.74 is: 1,298,341.81
Step by Step Solution
- Step 1: Write the proportion equation
911,946.88 : 1,368,621.52 = 865,117.74 : x - Step 2: Convert to fraction form
911,946.88/1,368,621.52 = 865,117.74/x - Step 3: Cross multiply
911,946.88x = 1,368,621.52 × 865,117.74 - Step 4: Simplify right side
911,946.88x = 1,184,018,761,500.96 - Step 5: Solve for x
x = 1,184,018,761,500.96/911,946.88 - Step 6: Final answer
x = 1,298,341.81
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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.