Finding the Fourth Proportional to 1,130,387.97, 1,559,935.04 and 621,123.15
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Solution
The fourth proportional to 1,130,387.97, 1,559,935.04 and 621,123.15 is: 857,149.75
Step by Step Solution
- Step 1: Write the proportion equation
1,130,387.97 : 1,559,935.04 = 621,123.15 : x - Step 2: Convert to fraction form
1,130,387.97/1,559,935.04 = 621,123.15/x - Step 3: Cross multiply
1,130,387.97x = 1,559,935.04 × 621,123.15 - Step 4: Simplify right side
1,130,387.97x = 968,911,765,840.18 - Step 5: Solve for x
x = 968,911,765,840.18/1,130,387.97 - Step 6: Final answer
x = 857,149.75
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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.