Finding the Fourth Proportional to 1,387,746.12, 1,915,409.70 and 903,468
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Solution
The fourth proportional to 1,387,746.12, 1,915,409.70 and 903,468 is: 1,246,994.21
Step by Step Solution
- Step 1: Write the proportion equation
1,387,746.12 : 1,915,409.70 = 903,468 : x - Step 2: Convert to fraction form
1,387,746.12/1,915,409.70 = 903,468/x - Step 3: Cross multiply
1,387,746.12x = 1,915,409.70 × 903,468 - Step 4: Simplify right side
1,387,746.12x = 1,730,511,370,839.60 - Step 5: Solve for x
x = 1,730,511,370,839.60/1,387,746.12 - Step 6: Final answer
x = 1,246,994.21
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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.