Finding the Fourth Proportional to 1,295,646.18, 1,787,994.45 and 722,671.62
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Solution
The fourth proportional to 1,295,646.18, 1,787,994.45 and 722,671.62 is: 997,288.35
Step by Step Solution
- Step 1: Write the proportion equation
1,295,646.18 : 1,787,994.45 = 722,671.62 : x - Step 2: Convert to fraction form
1,295,646.18/1,787,994.45 = 722,671.62/x - Step 3: Cross multiply
1,295,646.18x = 1,787,994.45 × 722,671.62 - Step 4: Simplify right side
1,295,646.18x = 1,292,132,845,732.51 - Step 5: Solve for x
x = 1,292,132,845,732.51/1,295,646.18 - Step 6: Final answer
x = 997,288.35
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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.