Finding the Fourth Proportional to 1,565,962.17, 2,160,925.49 and 921,257.80
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Solution
The fourth proportional to 1,565,962.17, 2,160,925.49 and 921,257.80 is: 1,271,275.59
Step by Step Solution
- Step 1: Write the proportion equation
1,565,962.17 : 2,160,925.49 = 921,257.80 : x - Step 2: Convert to fraction form
1,565,962.17/2,160,925.49 = 921,257.80/x - Step 3: Cross multiply
1,565,962.17x = 2,160,925.49 × 921,257.80 - Step 4: Simplify right side
1,565,962.17x = 1,990,769,471,937.36 - Step 5: Solve for x
x = 1,990,769,471,937.36/1,565,962.17 - Step 6: Final answer
x = 1,271,275.59
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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.