Finding the Fourth Proportional to 1,580,901.42, 2,181,645.27 and 855,746.91
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Solution
The fourth proportional to 1,580,901.42, 2,181,645.27 and 855,746.91 is: 1,180,931.45
Step by Step Solution
- Step 1: Write the proportion equation
1,580,901.42 : 2,181,645.27 = 855,746.91 : x - Step 2: Convert to fraction form
1,580,901.42/2,181,645.27 = 855,746.91/x - Step 3: Cross multiply
1,580,901.42x = 2,181,645.27 × 855,746.91 - Step 4: Simplify right side
1,580,901.42x = 1,866,936,198,518.62 - Step 5: Solve for x
x = 1,866,936,198,518.62/1,580,901.42 - Step 6: Final answer
x = 1,180,931.45
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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.