Finding the Fourth Proportional to 1,354,296.06, 1,868,916.62 and 742,437.70
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Solution
The fourth proportional to 1,354,296.06, 1,868,916.62 and 742,437.70 is: 1,024,557.48
Step by Step Solution
- Step 1: Write the proportion equation
1,354,296.06 : 1,868,916.62 = 742,437.70 : x - Step 2: Convert to fraction form
1,354,296.06/1,868,916.62 = 742,437.70/x - Step 3: Cross multiply
1,354,296.06x = 1,868,916.62 × 742,437.70 - Step 4: Simplify right side
1,354,296.06x = 1,387,554,154,028.38 - Step 5: Solve for x
x = 1,387,554,154,028.38/1,354,296.06 - Step 6: Final answer
x = 1,024,557.48
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1.5x scale
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.