Finding the Fourth Proportional to 1,296,460.49, 1,789,105.12 and 752,646.74
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Solution
The fourth proportional to 1,296,460.49, 1,789,105.12 and 752,646.74 is: 1,038,646.48
Step by Step Solution
- Step 1: Write the proportion equation
1,296,460.49 : 1,789,105.12 = 752,646.74 : x - Step 2: Convert to fraction form
1,296,460.49/1,789,105.12 = 752,646.74/x - Step 3: Cross multiply
1,296,460.49x = 1,789,105.12 × 752,646.74 - Step 4: Simplify right side
1,296,460.49x = 1,346,564,125,258.17 - Step 5: Solve for x
x = 1,346,564,125,258.17/1,296,460.49 - Step 6: Final answer
x = 1,038,646.48
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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.