Finding the Fourth Proportional to 840,139.35, 1,159,482.20 and 513,643.94
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Solution
The fourth proportional to 840,139.35, 1,159,482.20 and 513,643.94 is: 708,883.60
Step by Step Solution
- Step 1: Write the proportion equation
840,139.35 : 1,159,482.20 = 513,643.94 : x - Step 2: Convert to fraction form
840,139.35/1,159,482.20 = 513,643.94/x - Step 3: Cross multiply
840,139.35x = 1,159,482.20 × 513,643.94 - Step 4: Simplify right side
840,139.35x = 595,561,005,567.87 - Step 5: Solve for x
x = 595,561,005,567.87/840,139.35 - Step 6: Final answer
x = 708,883.60
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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.