Finding the Fourth Proportional to 1,408,251.15, 1,943,387.10 and 763,671.17
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Solution
The fourth proportional to 1,408,251.15, 1,943,387.10 and 763,671.17 is: 1,053,866.49
Step by Step Solution
- Step 1: Write the proportion equation
1,408,251.15 : 1,943,387.10 = 763,671.17 : x - Step 2: Convert to fraction form
1,408,251.15/1,943,387.10 = 763,671.17/x - Step 3: Cross multiply
1,408,251.15x = 1,943,387.10 × 763,671.17 - Step 4: Simplify right side
1,408,251.15x = 1,484,108,690,702.97 - Step 5: Solve for x
x = 1,484,108,690,702.97/1,408,251.15 - Step 6: Final answer
x = 1,053,866.49
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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.