Finding the Fourth Proportional to 1,369,886.97, 1,890,973.86 and 1,226,397.63
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Solution
The fourth proportional to 1,369,886.97, 1,890,973.86 and 1,226,397.63 is: 1,692,903.07
Step by Step Solution
- Step 1: Write the proportion equation
1,369,886.97 : 1,890,973.86 = 1,226,397.63 : x - Step 2: Convert to fraction form
1,369,886.97/1,890,973.86 = 1,226,397.63/x - Step 3: Cross multiply
1,369,886.97x = 1,890,973.86 × 1,226,397.63 - Step 4: Simplify right side
1,369,886.97x = 2,319,085,860,295.95 - Step 5: Solve for x
x = 2,319,085,860,295.95/1,369,886.97 - Step 6: Final answer
x = 1,692,903.07
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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.