Finding the Fourth Proportional to 900,753.12, 1,243,145.88 and 508,296.24
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Solution
The fourth proportional to 900,753.12, 1,243,145.88 and 508,296.24 is: 701,508.95
Step by Step Solution
- Step 1: Write the proportion equation
900,753.12 : 1,243,145.88 = 508,296.24 : x - Step 2: Convert to fraction form
900,753.12/1,243,145.88 = 508,296.24/x - Step 3: Cross multiply
900,753.12x = 1,243,145.88 × 508,296.24 - Step 4: Simplify right side
900,753.12x = 631,886,376,575.49 - Step 5: Solve for x
x = 631,886,376,575.49/900,753.12 - Step 6: Final answer
x = 701,508.95
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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.