Finding the Fourth Proportional to 825,701.70, 1,238,552.55 and 471,407.70
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Solution
The fourth proportional to 825,701.70, 1,238,552.55 and 471,407.70 is: 707,111.55
Step by Step Solution
- Step 1: Write the proportion equation
825,701.70 : 1,238,552.55 = 471,407.70 : x - Step 2: Convert to fraction form
825,701.70/1,238,552.55 = 471,407.70/x - Step 3: Cross multiply
825,701.70x = 1,238,552.55 × 471,407.70 - Step 4: Simplify right side
825,701.70x = 583,863,208,924.64 - Step 5: Solve for x
x = 583,863,208,924.64/825,701.70 - Step 6: Final answer
x = 707,111.55
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1.5x scale
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.