Finding the Fourth Proportional to 1,549,317.98, 2,138,312.36 and 1,290,784.96
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Solution
The fourth proportional to 1,549,317.98, 2,138,312.36 and 1,290,784.96 is: 1,781,494.48
Step by Step Solution
- Step 1: Write the proportion equation
1,549,317.98 : 2,138,312.36 = 1,290,784.96 : x - Step 2: Convert to fraction form
1,549,317.98/2,138,312.36 = 1,290,784.96/x - Step 3: Cross multiply
1,549,317.98x = 2,138,312.36 × 1,290,784.96 - Step 4: Simplify right side
1,549,317.98x = 2,760,101,434,070.11 - Step 5: Solve for x
x = 2,760,101,434,070.11/1,549,317.98 - Step 6: Final answer
x = 1,781,494.48
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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.