Finding the Fourth Proportional to 2,115,424.18, 2,919,268.65 and 1,148,534.89
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Solution
The fourth proportional to 2,115,424.18, 2,919,268.65 and 1,148,534.89 is: 1,584,969.07
Step by Step Solution
- Step 1: Write the proportion equation
2,115,424.18 : 2,919,268.65 = 1,148,534.89 : x - Step 2: Convert to fraction form
2,115,424.18/2,919,268.65 = 1,148,534.89/x - Step 3: Cross multiply
2,115,424.18x = 2,919,268.65 × 1,148,534.89 - Step 4: Simplify right side
2,115,424.18x = 3,352,881,897,808.20 - Step 5: Solve for x
x = 3,352,881,897,808.20/2,115,424.18 - Step 6: Final answer
x = 1,584,969.07
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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.