Finding the Fourth Proportional to 1,154,854.88, 1,593,710.05 and 638,643.70
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Solution
The fourth proportional to 1,154,854.88, 1,593,710.05 and 638,643.70 is: 881,334.01
Step by Step Solution
- Step 1: Write the proportion equation
1,154,854.88 : 1,593,710.05 = 638,643.70 : x - Step 2: Convert to fraction form
1,154,854.88/1,593,710.05 = 638,643.70/x - Step 3: Cross multiply
1,154,854.88x = 1,593,710.05 × 638,643.70 - Step 4: Simplify right side
1,154,854.88x = 1,017,812,886,442.92 - Step 5: Solve for x
x = 1,017,812,886,442.92/1,154,854.88 - Step 6: Final answer
x = 881,334.01
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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.