Finding the Fourth Proportional to 749,734.12, 1,034,607.34 and 427,547.92
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Solution
The fourth proportional to 749,734.12, 1,034,607.34 and 427,547.92 is: 590,001.45
Step by Step Solution
- Step 1: Write the proportion equation
749,734.12 : 1,034,607.34 = 427,547.92 : x - Step 2: Convert to fraction form
749,734.12/1,034,607.34 = 427,547.92/x - Step 3: Cross multiply
749,734.12x = 1,034,607.34 × 427,547.92 - Step 4: Simplify right side
749,734.12x = 442,344,216,233.73 - Step 5: Solve for x
x = 442,344,216,233.73/749,734.12 - Step 6: Final answer
x = 590,001.45
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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.