Finding the Fourth Proportional to 1,319,681.80, 1,820,737.63 and 738,819.55
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Solution
The fourth proportional to 1,319,681.80, 1,820,737.63 and 738,819.55 is: 1,019,334.03
Step by Step Solution
- Step 1: Write the proportion equation
1,319,681.80 : 1,820,737.63 = 738,819.55 : x - Step 2: Convert to fraction form
1,319,681.80/1,820,737.63 = 738,819.55/x - Step 3: Cross multiply
1,319,681.80x = 1,820,737.63 × 738,819.55 - Step 4: Simplify right side
1,319,681.80x = 1,345,196,566,862.87 - Step 5: Solve for x
x = 1,345,196,566,862.87/1,319,681.80 - Step 6: Final answer
x = 1,019,334.03
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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.