Finding the Fourth Proportional to 2,897,987.12, 3,999,240.08 and 1,591,295.63
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Solution
The fourth proportional to 2,897,987.12, 3,999,240.08 and 1,591,295.63 is: 2,195,997.77
Step by Step Solution
- Step 1: Write the proportion equation
2,897,987.12 : 3,999,240.08 = 1,591,295.63 : x - Step 2: Convert to fraction form
2,897,987.12/3,999,240.08 = 1,591,295.63/x - Step 3: Cross multiply
2,897,987.12x = 3,999,240.08 × 1,591,295.63 - Step 4: Simplify right side
2,897,987.12x = 6,363,973,249,590.57 - Step 5: Solve for x
x = 6,363,973,249,590.57/2,897,987.12 - Step 6: Final answer
x = 2,195,997.77
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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.