Finding the Fourth Proportional to 918,291.92, 1,377,334.20 and 319,152.08
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Solution
The fourth proportional to 918,291.92, 1,377,334.20 and 319,152.08 is: 478,692.09
Step by Step Solution
- Step 1: Write the proportion equation
918,291.92 : 1,377,334.20 = 319,152.08 : x - Step 2: Convert to fraction form
918,291.92/1,377,334.20 = 319,152.08/x - Step 3: Cross multiply
918,291.92x = 1,377,334.20 × 319,152.08 - Step 4: Simplify right side
918,291.92x = 439,579,074,785.14 - Step 5: Solve for x
x = 439,579,074,785.14/918,291.92 - Step 6: Final answer
x = 478,692.09
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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.