Finding the Fourth Proportional to 1,267,247.32, 1,748,802.66 and 686,471.80
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Solution
The fourth proportional to 1,267,247.32, 1,748,802.66 and 686,471.80 is: 947,331.82
Step by Step Solution
- Step 1: Write the proportion equation
1,267,247.32 : 1,748,802.66 = 686,471.80 : x - Step 2: Convert to fraction form
1,267,247.32/1,748,802.66 = 686,471.80/x - Step 3: Cross multiply
1,267,247.32x = 1,748,802.66 × 686,471.80 - Step 4: Simplify right side
1,267,247.32x = 1,200,503,709,854.99 - Step 5: Solve for x
x = 1,200,503,709,854.99/1,267,247.32 - Step 6: Final answer
x = 947,331.82
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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.