Finding the Fourth Proportional to 1,556,462.72, 2,319,220.58 and 1,386,678.42
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Solution
The fourth proportional to 1,556,462.72, 2,319,220.58 and 1,386,678.42 is: 2,066,232.02
Step by Step Solution
- Step 1: Write the proportion equation
1,556,462.72 : 2,319,220.58 = 1,386,678.42 : x - Step 2: Convert to fraction form
1,556,462.72/2,319,220.58 = 1,386,678.42/x - Step 3: Cross multiply
1,556,462.72x = 2,319,220.58 × 1,386,678.42 - Step 4: Simplify right side
1,556,462.72x = 3,216,013,122,572.49 - Step 5: Solve for x
x = 3,216,013,122,572.49/1,556,462.72 - Step 6: Final answer
x = 2,066,232.02
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1.5x scale
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.