Finding the Fourth Proportional to 677,146.62, 934,426.35 and 390,649.62
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Solution
The fourth proportional to 677,146.62, 934,426.35 and 390,649.62 is: 539,075.72
Step by Step Solution
- Step 1: Write the proportion equation
677,146.62 : 934,426.35 = 390,649.62 : x - Step 2: Convert to fraction form
677,146.62/934,426.35 = 390,649.62/x - Step 3: Cross multiply
677,146.62x = 934,426.35 × 390,649.62 - Step 4: Simplify right side
677,146.62x = 365,033,298,545.49 - Step 5: Solve for x
x = 365,033,298,545.49/677,146.62 - Step 6: Final answer
x = 539,075.72
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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.