Finding the Fourth Proportional to 1,552,389.96, 2,141,590.14 and 1,121,988.36
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Solution
The fourth proportional to 1,552,389.96, 2,141,590.14 and 1,121,988.36 is: 1,547,832.23
Step by Step Solution
- Step 1: Write the proportion equation
1,552,389.96 : 2,141,590.14 = 1,121,988.36 : x - Step 2: Convert to fraction form
1,552,389.96/2,141,590.14 = 1,121,988.36/x - Step 3: Cross multiply
1,552,389.96x = 2,141,590.14 × 1,121,988.36 - Step 4: Simplify right side
1,552,389.96x = 2,402,839,208,970.77 - Step 5: Solve for x
x = 2,402,839,208,970.77/1,552,389.96 - Step 6: Final answer
x = 1,547,832.23
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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.