Finding the Fourth Proportional to 1,275,506.08, 1,913,259.12 and 1,111,276.96
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Solution
The fourth proportional to 1,275,506.08, 1,913,259.12 and 1,111,276.96 is: 1,666,915.44
Step by Step Solution
- Step 1: Write the proportion equation
1,275,506.08 : 1,913,259.12 = 1,111,276.96 : x - Step 2: Convert to fraction form
1,275,506.08/1,913,259.12 = 1,111,276.96/x - Step 3: Cross multiply
1,275,506.08x = 1,913,259.12 × 1,111,276.96 - Step 4: Simplify right side
1,275,506.08x = 2,126,160,778,565.88 - Step 5: Solve for x
x = 2,126,160,778,565.88/1,275,506.08 - Step 6: Final answer
x = 1,666,915.44
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.