Finding the Fourth Proportional to 1,130,145.36, 1,695,031.68 and 371,996.70
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Solution
The fourth proportional to 1,130,145.36, 1,695,031.68 and 371,996.70 is: 557,933.71
Step by Step Solution
- Step 1: Write the proportion equation
1,130,145.36 : 1,695,031.68 = 371,996.70 : x - Step 2: Convert to fraction form
1,130,145.36/1,695,031.68 = 371,996.70/x - Step 3: Cross multiply
1,130,145.36x = 1,695,031.68 × 371,996.70 - Step 4: Simplify right side
1,130,145.36x = 630,546,191,355.46 - Step 5: Solve for x
x = 630,546,191,355.46/1,130,145.36 - Step 6: Final answer
x = 557,933.71
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.