Finding the Fourth Proportional to 860,612.84, 1,187,639.13 and 473,419.91
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Solution
The fourth proportional to 860,612.84, 1,187,639.13 and 473,419.91 is: 653,315.85
Step by Step Solution
- Step 1: Write the proportion equation
860,612.84 : 1,187,639.13 = 473,419.91 : x - Step 2: Convert to fraction form
860,612.84/1,187,639.13 = 473,419.91/x - Step 3: Cross multiply
860,612.84x = 1,187,639.13 × 473,419.91 - Step 4: Simplify right side
860,612.84x = 562,252,010,037.08 - Step 5: Solve for x
x = 562,252,010,037.08/860,612.84 - Step 6: Final answer
x = 653,315.85
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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.