Finding the Fourth Proportional to 1,376,356.12, 2,064,533.42 and 429,807.96
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Solution
The fourth proportional to 1,376,356.12, 2,064,533.42 and 429,807.96 is: 644,711.70
Step by Step Solution
- Step 1: Write the proportion equation
1,376,356.12 : 2,064,533.42 = 429,807.96 : x - Step 2: Convert to fraction form
1,376,356.12/2,064,533.42 = 429,807.96/x - Step 3: Cross multiply
1,376,356.12x = 2,064,533.42 × 429,807.96 - Step 4: Simplify right side
1,376,356.12x = 887,352,897,602.02 - Step 5: Solve for x
x = 887,352,897,602.02/1,376,356.12 - Step 6: Final answer
x = 644,711.70
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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.