Finding the Fourth Proportional to 725,138.98, 1,082,966.35 and 617,374.06
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Solution
The fourth proportional to 725,138.98, 1,082,966.35 and 617,374.06 is: 922,023.71
Step by Step Solution
- Step 1: Write the proportion equation
725,138.98 : 1,082,966.35 = 617,374.06 : x - Step 2: Convert to fraction form
725,138.98/1,082,966.35 = 617,374.06/x - Step 3: Cross multiply
725,138.98x = 1,082,966.35 × 617,374.06 - Step 4: Simplify right side
725,138.98x = 668,595,332,342.88 - Step 5: Solve for x
x = 668,595,332,342.88/725,138.98 - Step 6: Final answer
x = 922,023.71
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.