Finding the Fourth Proportional to 1,209,029.04, 1,668,460.14 and 665,153.19
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Solution
The fourth proportional to 1,209,029.04, 1,668,460.14 and 665,153.19 is: 917,911.44
Step by Step Solution
- Step 1: Write the proportion equation
1,209,029.04 : 1,668,460.14 = 665,153.19 : x - Step 2: Convert to fraction form
1,209,029.04/1,668,460.14 = 665,153.19/x - Step 3: Cross multiply
1,209,029.04x = 1,668,460.14 × 665,153.19 - Step 4: Simplify right side
1,209,029.04x = 1,109,781,584,508.85 - Step 5: Solve for x
x = 1,109,781,584,508.85/1,209,029.04 - Step 6: Final answer
x = 917,911.44
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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.