Finding the Fourth Proportional to 1,285,271.60, 1,916,416.74 and 1,249,959.84
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Solution
The fourth proportional to 1,285,271.60, 1,916,416.74 and 1,249,959.84 is: 1,863,764.80
Step by Step Solution
- Step 1: Write the proportion equation
1,285,271.60 : 1,916,416.74 = 1,249,959.84 : x - Step 2: Convert to fraction form
1,285,271.60/1,916,416.74 = 1,249,959.84/x - Step 3: Cross multiply
1,285,271.60x = 1,916,416.74 × 1,249,959.84 - Step 4: Simplify right side
1,285,271.60x = 2,395,443,961,703.72 - Step 5: Solve for x
x = 2,395,443,961,703.72/1,285,271.60 - Step 6: Final answer
x = 1,863,764.80
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.