Finding the Fourth Proportional to 1,312,391.65, 1,968,862.08 and 554,235.29
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Solution
The fourth proportional to 1,312,391.65, 1,968,862.08 and 554,235.29 is: 831,468.91
Step by Step Solution
- Step 1: Write the proportion equation
1,312,391.65 : 1,968,862.08 = 554,235.29 : x - Step 2: Convert to fraction form
1,312,391.65/1,968,862.08 = 554,235.29/x - Step 3: Cross multiply
1,312,391.65x = 1,968,862.08 × 554,235.29 - Step 4: Simplify right side
1,312,391.65x = 1,091,212,845,878.80 - Step 5: Solve for x
x = 1,091,212,845,878.80/1,312,391.65 - Step 6: Final answer
x = 831,468.91
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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.