Finding the Fourth Proportional to 1,249,648.70, 1,724,531.94 and 698,340.18
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Solution
The fourth proportional to 1,249,648.70, 1,724,531.94 and 698,340.18 is: 963,718.79
Step by Step Solution
- Step 1: Write the proportion equation
1,249,648.70 : 1,724,531.94 = 698,340.18 : x - Step 2: Convert to fraction form
1,249,648.70/1,724,531.94 = 698,340.18/x - Step 3: Cross multiply
1,249,648.70x = 1,724,531.94 × 698,340.18 - Step 4: Simplify right side
1,249,648.70x = 1,204,309,938,928.35 - Step 5: Solve for x
x = 1,204,309,938,928.35/1,249,648.70 - Step 6: Final answer
x = 963,718.79
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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.