Finding the Fourth Proportional to 708,362.21, 977,562.68 and 402,433.01
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Solution
The fourth proportional to 708,362.21, 977,562.68 and 402,433.01 is: 555,370.52
Step by Step Solution
- Step 1: Write the proportion equation
708,362.21 : 977,562.68 = 402,433.01 : x - Step 2: Convert to fraction form
708,362.21/977,562.68 = 402,433.01/x - Step 3: Cross multiply
708,362.21x = 977,562.68 × 402,433.01 - Step 4: Simplify right side
708,362.21x = 393,403,488,541.95 - Step 5: Solve for x
x = 393,403,488,541.95/708,362.21 - Step 6: Final answer
x = 555,370.52
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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.