Finding the Fourth Proportional to 991,489.96, 1,487,108.28 and 383,862.58
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Solution
The fourth proportional to 991,489.96, 1,487,108.28 and 383,862.58 is: 575,744.84
Step by Step Solution
- Step 1: Write the proportion equation
991,489.96 : 1,487,108.28 = 383,862.58 : x - Step 2: Convert to fraction form
991,489.96/1,487,108.28 = 383,862.58/x - Step 3: Cross multiply
991,489.96x = 1,487,108.28 × 383,862.58 - Step 4: Simplify right side
991,489.96x = 570,845,224,808.87 - Step 5: Solve for x
x = 570,845,224,808.87/991,489.96 - Step 6: Final answer
x = 575,744.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.