Finding the Fourth Proportional to 4,371,579.20, 6,557,368.80 and 1,379,763.20
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Solution
The fourth proportional to 4,371,579.20, 6,557,368.80 and 1,379,763.20 is: 2,069,644.80
Step by Step Solution
- Step 1: Write the proportion equation
4,371,579.20 : 6,557,368.80 = 1,379,763.20 : x - Step 2: Convert to fraction form
4,371,579.20/6,557,368.80 = 1,379,763.20/x - Step 3: Cross multiply
4,371,579.20x = 6,557,368.80 × 1,379,763.20 - Step 4: Simplify right side
4,371,579.20x = 9,047,616,159,068.16 - Step 5: Solve for x
x = 9,047,616,159,068.16/4,371,579.20 - Step 6: Final answer
x = 2,069,644.80
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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.