Finding the Fourth Proportional to 1,355,747.92, 1,871,098.05 and 782,787.13
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Solution
The fourth proportional to 1,355,747.92, 1,871,098.05 and 782,787.13 is: 1,080,342.04
Step by Step Solution
- Step 1: Write the proportion equation
1,355,747.92 : 1,871,098.05 = 782,787.13 : x - Step 2: Convert to fraction form
1,355,747.92/1,871,098.05 = 782,787.13/x - Step 3: Cross multiply
1,355,747.92x = 1,871,098.05 × 782,787.13 - Step 4: Simplify right side
1,355,747.92x = 1,464,671,472,508.10 - Step 5: Solve for x
x = 1,464,671,472,508.10/1,355,747.92 - Step 6: Final answer
x = 1,080,342.04
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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.