Finding the Fourth Proportional to 1,516,370.80, 2,090,885.64 and 1,239,865.96
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Solution
The fourth proportional to 1,516,370.80, 2,090,885.64 and 1,239,865.96 is: 1,709,620.06
Step by Step Solution
- Step 1: Write the proportion equation
1,516,370.80 : 2,090,885.64 = 1,239,865.96 : x - Step 2: Convert to fraction form
1,516,370.80/2,090,885.64 = 1,239,865.96/x - Step 3: Cross multiply
1,516,370.80x = 2,090,885.64 × 1,239,865.96 - Step 4: Simplify right side
1,516,370.80x = 2,592,417,931,288.81 - Step 5: Solve for x
x = 2,592,417,931,288.81/1,516,370.80 - Step 6: Final answer
x = 1,709,620.06
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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.