Finding the Fourth Proportional to 689,702.18, 952,226.28 and 472,274.69
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Solution
The fourth proportional to 689,702.18, 952,226.28 and 472,274.69 is: 652,038.49
Step by Step Solution
- Step 1: Write the proportion equation
689,702.18 : 952,226.28 = 472,274.69 : x - Step 2: Convert to fraction form
689,702.18/952,226.28 = 472,274.69/x - Step 3: Cross multiply
689,702.18x = 952,226.28 × 472,274.69 - Step 4: Simplify right side
689,702.18x = 449,712,366,435.72 - Step 5: Solve for x
x = 449,712,366,435.72/689,702.18 - Step 6: Final answer
x = 652,038.49
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1.5x scale
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.