Finding the Fourth Proportional to 1,319,835.04, 1,821,347.28 and 803,401.12
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Solution
The fourth proportional to 1,319,835.04, 1,821,347.28 and 803,401.12 is: 1,108,678.28
Step by Step Solution
- Step 1: Write the proportion equation
1,319,835.04 : 1,821,347.28 = 803,401.12 : x - Step 2: Convert to fraction form
1,319,835.04/1,821,347.28 = 803,401.12/x - Step 3: Cross multiply
1,319,835.04x = 1,821,347.28 × 803,401.12 - Step 4: Simplify right side
1,319,835.04x = 1,463,272,444,660.95 - Step 5: Solve for x
x = 1,463,272,444,660.95/1,319,835.04 - Step 6: Final answer
x = 1,108,678.28
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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.