Finding the Fourth Proportional to 1,625,590.80, 2,243,389.14 and 900,438.42
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Solution
The fourth proportional to 1,625,590.80, 2,243,389.14 and 900,438.42 is: 1,242,645.92
Step by Step Solution
- Step 1: Write the proportion equation
1,625,590.80 : 2,243,389.14 = 900,438.42 : x - Step 2: Convert to fraction form
1,625,590.80/2,243,389.14 = 900,438.42/x - Step 3: Cross multiply
1,625,590.80x = 2,243,389.14 × 900,438.42 - Step 4: Simplify right side
1,625,590.80x = 2,020,033,778,546.99 - Step 5: Solve for x
x = 2,020,033,778,546.99/1,625,590.80 - Step 6: Final answer
x = 1,242,645.92
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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.