Finding the Fourth Proportional to 1,122,830.07, 1,681,226.98 and 855,316.23
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Solution
The fourth proportional to 1,122,830.07, 1,681,226.98 and 855,316.23 is: 1,280,675.29
Step by Step Solution
- Step 1: Write the proportion equation
1,122,830.07 : 1,681,226.98 = 855,316.23 : x - Step 2: Convert to fraction form
1,122,830.07/1,681,226.98 = 855,316.23/x - Step 3: Cross multiply
1,122,830.07x = 1,681,226.98 × 855,316.23 - Step 4: Simplify right side
1,122,830.07x = 1,437,980,722,307.89 - Step 5: Solve for x
x = 1,437,980,722,307.89/1,122,830.07 - Step 6: Final answer
x = 1,280,675.29
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.