Finding the Fourth Proportional to 1,226,275.88, 1,839,881.99 and 478,380.20
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Solution
The fourth proportional to 1,226,275.88, 1,839,881.99 and 478,380.20 is: 717,752.93
Step by Step Solution
- Step 1: Write the proportion equation
1,226,275.88 : 1,839,881.99 = 478,380.20 : x - Step 2: Convert to fraction form
1,226,275.88/1,839,881.99 = 478,380.20/x - Step 3: Cross multiply
1,226,275.88x = 1,839,881.99 × 478,380.20 - Step 4: Simplify right side
1,226,275.88x = 880,163,106,349.14 - Step 5: Solve for x
x = 880,163,106,349.14/1,226,275.88 - Step 6: Final answer
x = 717,752.93
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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.