Finding the Fourth Proportional to 1,115,720.06, 1,539,726.14 and 632,269.12
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Solution
The fourth proportional to 1,115,720.06, 1,539,726.14 and 632,269.12 is: 872,549.78
Step by Step Solution
- Step 1: Write the proportion equation
1,115,720.06 : 1,539,726.14 = 632,269.12 : x - Step 2: Convert to fraction form
1,115,720.06/1,539,726.14 = 632,269.12/x - Step 3: Cross multiply
1,115,720.06x = 1,539,726.14 × 632,269.12 - Step 4: Simplify right side
1,115,720.06x = 973,521,291,578.80 - Step 5: Solve for x
x = 973,521,291,578.80/1,115,720.06 - Step 6: Final answer
x = 872,549.78
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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.