Finding the Fourth Proportional to 1,223,678.00, 1,688,488.16 and 679,763.81
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Solution
The fourth proportional to 1,223,678.00, 1,688,488.16 and 679,763.81 is: 937,969.91
Step by Step Solution
- Step 1: Write the proportion equation
1,223,678.00 : 1,688,488.16 = 679,763.81 : x - Step 2: Convert to fraction form
1,223,678.00/1,688,488.16 = 679,763.81/x - Step 3: Cross multiply
1,223,678.00x = 1,688,488.16 × 679,763.81 - Step 4: Simplify right side
1,223,678.00x = 1,147,773,132,940.23 - Step 5: Solve for x
x = 1,147,773,132,940.23/1,223,678.00 - Step 6: Final answer
x = 937,969.91
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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.