Finding the Fourth Proportional to 1,430,987.27, 1,975,028.47 and 819,140.05
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Solution
The fourth proportional to 1,430,987.27, 1,975,028.47 and 819,140.05 is: 1,130,565.55
Step by Step Solution
- Step 1: Write the proportion equation
1,430,987.27 : 1,975,028.47 = 819,140.05 : x - Step 2: Convert to fraction form
1,430,987.27/1,975,028.47 = 819,140.05/x - Step 3: Cross multiply
1,430,987.27x = 1,975,028.47 × 819,140.05 - Step 4: Simplify right side
1,430,987.27x = 1,617,824,916,969.22 - Step 5: Solve for x
x = 1,617,824,916,969.22/1,430,987.27 - Step 6: Final answer
x = 1,130,565.55
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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.