Finding the Fourth Proportional to 1,310,420.23, 1,808,454.35 and 787,290.84
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Solution
The fourth proportional to 1,310,420.23, 1,808,454.35 and 787,290.84 is: 1,086,506.08
Step by Step Solution
- Step 1: Write the proportion equation
1,310,420.23 : 1,808,454.35 = 787,290.84 : x - Step 2: Convert to fraction form
1,310,420.23/1,808,454.35 = 787,290.84/x - Step 3: Cross multiply
1,310,420.23x = 1,808,454.35 × 787,290.84 - Step 4: Simplify right side
1,310,420.23x = 1,423,779,544,313.15 - Step 5: Solve for x
x = 1,423,779,544,313.15/1,310,420.23 - Step 6: Final answer
x = 1,086,506.08
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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.