Finding the Fourth Proportional to 487,549.18, 672,547.08 and 283,577.14
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Solution
The fourth proportional to 487,549.18, 672,547.08 and 283,577.14 is: 391,178.95
Step by Step Solution
- Step 1: Write the proportion equation
487,549.18 : 672,547.08 = 283,577.14 : x - Step 2: Convert to fraction form
487,549.18/672,547.08 = 283,577.14/x - Step 3: Cross multiply
487,549.18x = 672,547.08 × 283,577.14 - Step 4: Simplify right side
487,549.18x = 190,718,977,461.75 - Step 5: Solve for x
x = 190,718,977,461.75/487,549.18 - Step 6: Final answer
x = 391,178.95
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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.