Finding the Fourth Proportional to 1,430,377.17, 1,975,668.90 and 1,069,405.53
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Solution
The fourth proportional to 1,430,377.17, 1,975,668.90 and 1,069,405.53 is: 1,477,086.81
Step by Step Solution
- Step 1: Write the proportion equation
1,430,377.17 : 1,975,668.90 = 1,069,405.53 : x - Step 2: Convert to fraction form
1,430,377.17/1,975,668.90 = 1,069,405.53/x - Step 3: Cross multiply
1,430,377.17x = 1,975,668.90 × 1,069,405.53 - Step 4: Simplify right side
1,430,377.17x = 2,112,791,247,109.02 - Step 5: Solve for x
x = 2,112,791,247,109.02/1,430,377.17 - Step 6: Final answer
x = 1,477,086.81
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.