Finding the Fourth Proportional to 1,564,768.92, 2,159,432.46 and 885,690.84
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Solution
The fourth proportional to 1,564,768.92, 2,159,432.46 and 885,690.84 is: 1,222,282.42
Step by Step Solution
- Step 1: Write the proportion equation
1,564,768.92 : 2,159,432.46 = 885,690.84 : x - Step 2: Convert to fraction form
1,564,768.92/2,159,432.46 = 885,690.84/x - Step 3: Cross multiply
1,564,768.92x = 2,159,432.46 × 885,690.84 - Step 4: Simplify right side
1,564,768.92x = 1,912,589,549,420.67 - Step 5: Solve for x
x = 1,912,589,549,420.67/1,564,768.92 - Step 6: Final answer
x = 1,222,282.42
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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.