Finding the Fourth Proportional to 908,983.60, 1,361,492.52 and 749,420.08
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Solution
The fourth proportional to 908,983.60, 1,361,492.52 and 749,420.08 is: 1,122,495.32
Step by Step Solution
- Step 1: Write the proportion equation
908,983.60 : 1,361,492.52 = 749,420.08 : x - Step 2: Convert to fraction form
908,983.60/1,361,492.52 = 749,420.08/x - Step 3: Cross multiply
908,983.60x = 1,361,492.52 × 749,420.08 - Step 4: Simplify right side
908,983.60x = 1,020,329,833,257.80 - Step 5: Solve for x
x = 1,020,329,833,257.80/908,983.60 - Step 6: Final answer
x = 1,122,495.32
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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.