Finding the Fourth Proportional to 830,351.19, 1,145,888.73 and 467,780.76
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Solution
The fourth proportional to 830,351.19, 1,145,888.73 and 467,780.76 is: 645,539.75
Step by Step Solution
- Step 1: Write the proportion equation
830,351.19 : 1,145,888.73 = 467,780.76 : x - Step 2: Convert to fraction form
830,351.19/1,145,888.73 = 467,780.76/x - Step 3: Cross multiply
830,351.19x = 1,145,888.73 × 467,780.76 - Step 4: Simplify right side
830,351.19x = 536,024,700,994.84 - Step 5: Solve for x
x = 536,024,700,994.84/830,351.19 - Step 6: Final answer
x = 645,539.75
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1.5x scale
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.