Finding the Fourth Proportional to 708,214.08, 977,221.08 and 421,726.80
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Solution
The fourth proportional to 708,214.08, 977,221.08 and 421,726.80 is: 581,914.89
Step by Step Solution
- Step 1: Write the proportion equation
708,214.08 : 977,221.08 = 421,726.80 : x - Step 2: Convert to fraction form
708,214.08/977,221.08 = 421,726.80/x - Step 3: Cross multiply
708,214.08x = 977,221.08 × 421,726.80 - Step 4: Simplify right side
708,214.08x = 412,120,318,960.94 - Step 5: Solve for x
x = 412,120,318,960.94/708,214.08 - Step 6: Final answer
x = 581,914.89
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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.