Finding the Fourth Proportional to 708,647.62, 977,896.64 and 402,683.08
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Solution
The fourth proportional to 708,647.62, 977,896.64 and 402,683.08 is: 555,681.58
Step by Step Solution
- Step 1: Write the proportion equation
708,647.62 : 977,896.64 = 402,683.08 : x - Step 2: Convert to fraction form
708,647.62/977,896.64 = 402,683.08/x - Step 3: Cross multiply
708,647.62x = 977,896.64 × 402,683.08 - Step 4: Simplify right side
708,647.62x = 393,782,430,916.85 - Step 5: Solve for x
x = 393,782,430,916.85/708,647.62 - Step 6: Final answer
x = 555,681.58
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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.