Finding the Fourth Proportional to 1,174,349.12, 1,620,610.08 and 637,805.12
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Solution
The fourth proportional to 1,174,349.12, 1,620,610.08 and 637,805.12 is: 880,175.57
Step by Step Solution
- Step 1: Write the proportion equation
1,174,349.12 : 1,620,610.08 = 637,805.12 : x - Step 2: Convert to fraction form
1,174,349.12/1,620,610.08 = 637,805.12/x - Step 3: Cross multiply
1,174,349.12x = 1,620,610.08 × 637,805.12 - Step 4: Simplify right side
1,174,349.12x = 1,033,633,406,547.61 - Step 5: Solve for x
x = 1,033,633,406,547.61/1,174,349.12 - Step 6: Final answer
x = 880,175.57
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1.5x scale
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.