Finding the Fourth Proportional to 620,726.68, 856,603.74 and 352,454.68
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Solution
The fourth proportional to 620,726.68, 856,603.74 and 352,454.68 is: 486,387.98
Step by Step Solution
- Step 1: Write the proportion equation
620,726.68 : 856,603.74 = 352,454.68 : x - Step 2: Convert to fraction form
620,726.68/856,603.74 = 352,454.68/x - Step 3: Cross multiply
620,726.68x = 856,603.74 × 352,454.68 - Step 4: Simplify right side
620,726.68x = 301,913,997,068.50 - Step 5: Solve for x
x = 301,913,997,068.50/620,726.68 - Step 6: Final answer
x = 486,387.98
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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.