Finding the Fourth Proportional to 1,347,565.68, 1,859,428.80 and 774,495.20
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Solution
The fourth proportional to 1,347,565.68, 1,859,428.80 and 774,495.20 is: 1,068,681.62
Step by Step Solution
- Step 1: Write the proportion equation
1,347,565.68 : 1,859,428.80 = 774,495.20 : x - Step 2: Convert to fraction form
1,347,565.68/1,859,428.80 = 774,495.20/x - Step 3: Cross multiply
1,347,565.68x = 1,859,428.80 × 774,495.20 - Step 4: Simplify right side
1,347,565.68x = 1,440,118,680,341.76 - Step 5: Solve for x
x = 1,440,118,680,341.76/1,347,565.68 - Step 6: Final answer
x = 1,068,681.62
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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.