Finding the Fourth Proportional to 1,354,430.14, 1,869,134.70 and 742,638.76
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Solution
The fourth proportional to 1,354,430.14, 1,869,134.70 and 742,638.76 is: 1,024,853.06
Step by Step Solution
- Step 1: Write the proportion equation
1,354,430.14 : 1,869,134.70 = 742,638.76 : x - Step 2: Convert to fraction form
1,354,430.14/1,869,134.70 = 742,638.76/x - Step 3: Cross multiply
1,354,430.14x = 1,869,134.70 × 742,638.76 - Step 4: Simplify right side
1,354,430.14x = 1,388,091,875,880.97 - Step 5: Solve for x
x = 1,388,091,875,880.97/1,354,430.14 - Step 6: Final answer
x = 1,024,853.06
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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.