Finding the Fourth Proportional to 763,498.50, 1,053,671.67 and 423,988.62
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Solution
The fourth proportional to 763,498.50, 1,053,671.67 and 423,988.62 is: 585,128.59
Step by Step Solution
- Step 1: Write the proportion equation
763,498.50 : 1,053,671.67 = 423,988.62 : x - Step 2: Convert to fraction form
763,498.50/1,053,671.67 = 423,988.62/x - Step 3: Cross multiply
763,498.50x = 1,053,671.67 × 423,988.62 - Step 4: Simplify right side
763,498.50x = 446,744,797,296.40 - Step 5: Solve for x
x = 446,744,797,296.40/763,498.50 - Step 6: Final answer
x = 585,128.59
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.