Finding the Fourth Proportional to 689,763.60, 951,790.20 and 383,767.74
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Solution
The fourth proportional to 689,763.60, 951,790.20 and 383,767.74 is: 529,552.99
Step by Step Solution
- Step 1: Write the proportion equation
689,763.60 : 951,790.20 = 383,767.74 : x - Step 2: Convert to fraction form
689,763.60/951,790.20 = 383,767.74/x - Step 3: Cross multiply
689,763.60x = 951,790.20 × 383,767.74 - Step 4: Simplify right side
689,763.60x = 365,266,374,008.15 - Step 5: Solve for x
x = 365,266,374,008.15/689,763.60 - Step 6: Final answer
x = 529,552.99
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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.