Finding the Fourth Proportional to 1,535,813.81, 2,115,961.79 and 1,070,228.84
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Solution
The fourth proportional to 1,535,813.81, 2,115,961.79 and 1,070,228.84 is: 1,474,503.82
Step by Step Solution
- Step 1: Write the proportion equation
1,535,813.81 : 2,115,961.79 = 1,070,228.84 : x - Step 2: Convert to fraction form
1,535,813.81/2,115,961.79 = 1,070,228.84/x - Step 3: Cross multiply
1,535,813.81x = 2,115,961.79 × 1,070,228.84 - Step 4: Simplify right side
1,535,813.81x = 2,264,563,316,065.07 - Step 5: Solve for x
x = 2,264,563,316,065.07/1,535,813.81 - Step 6: Final answer
x = 1,474,503.82
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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.