Finding the Fourth Proportional to 783,491.84, 1,081,219.20 and 425,795.84
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Solution
The fourth proportional to 783,491.84, 1,081,219.20 and 425,795.84 is: 587,598.51
Step by Step Solution
- Step 1: Write the proportion equation
783,491.84 : 1,081,219.20 = 425,795.84 : x - Step 2: Convert to fraction form
783,491.84/1,081,219.20 = 425,795.84/x - Step 3: Cross multiply
783,491.84x = 1,081,219.20 × 425,795.84 - Step 4: Simplify right side
783,491.84x = 460,378,637,488.13 - Step 5: Solve for x
x = 460,378,637,488.13/783,491.84 - Step 6: Final answer
x = 587,598.51
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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.