Finding the Fourth Proportional to 640,407.48, 883,190.21 and 531,339.12
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Solution
The fourth proportional to 640,407.48, 883,190.21 and 531,339.12 is: 732,773.31
Step by Step Solution
- Step 1: Write the proportion equation
640,407.48 : 883,190.21 = 531,339.12 : x - Step 2: Convert to fraction form
640,407.48/883,190.21 = 531,339.12/x - Step 3: Cross multiply
640,407.48x = 883,190.21 × 531,339.12 - Step 4: Simplify right side
640,407.48x = 469,273,506,317.32 - Step 5: Solve for x
x = 469,273,506,317.32/640,407.48 - Step 6: Final answer
x = 732,773.31
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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.