Finding the Fourth Proportional to 989,724.80, 1,484,587.20 and 877,531.70
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Solution
The fourth proportional to 989,724.80, 1,484,587.20 and 877,531.70 is: 1,316,297.55
Step by Step Solution
- Step 1: Write the proportion equation
989,724.80 : 1,484,587.20 = 877,531.70 : x - Step 2: Convert to fraction form
989,724.80/1,484,587.20 = 877,531.70/x - Step 3: Cross multiply
989,724.80x = 1,484,587.20 × 877,531.70 - Step 4: Simplify right side
989,724.80x = 1,302,772,329,414.24 - Step 5: Solve for x
x = 1,302,772,329,414.24/989,724.80 - Step 6: Final answer
x = 1,316,297.55
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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.