Finding the Fourth Proportional to 947,203.12, 1,421,702.91 and 586,282.21
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Solution
The fourth proportional to 947,203.12, 1,421,702.91 and 586,282.21 is: 879,979.28
Step by Step Solution
- Step 1: Write the proportion equation
947,203.12 : 1,421,702.91 = 586,282.21 : x - Step 2: Convert to fraction form
947,203.12/1,421,702.91 = 586,282.21/x - Step 3: Cross multiply
947,203.12x = 1,421,702.91 × 586,282.21 - Step 4: Simplify right side
947,203.12x = 833,519,124,038.23 - Step 5: Solve for x
x = 833,519,124,038.23/947,203.12 - Step 6: Final answer
x = 879,979.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.