Finding the Fourth Proportional to 1,426,197.22, 1,968,154.95 and 781,641.34
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Solution
The fourth proportional to 1,426,197.22, 1,968,154.95 and 781,641.34 is: 1,078,666.58
Step by Step Solution
- Step 1: Write the proportion equation
1,426,197.22 : 1,968,154.95 = 781,641.34 : x - Step 2: Convert to fraction form
1,426,197.22/1,968,154.95 = 781,641.34/x - Step 3: Cross multiply
1,426,197.22x = 1,968,154.95 × 781,641.34 - Step 4: Simplify right side
1,426,197.22x = 1,538,391,272,445.63 - Step 5: Solve for x
x = 1,538,391,272,445.63/1,426,197.22 - Step 6: Final answer
x = 1,078,666.58
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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.