Finding the Fourth Proportional to 707,788.68, 977,397.48 and 449,750.67
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Solution
The fourth proportional to 707,788.68, 977,397.48 and 449,750.67 is: 621,068.38
Step by Step Solution
- Step 1: Write the proportion equation
707,788.68 : 977,397.48 = 449,750.67 : x - Step 2: Convert to fraction form
707,788.68/977,397.48 = 449,750.67/x - Step 3: Cross multiply
707,788.68x = 977,397.48 × 449,750.67 - Step 4: Simplify right side
707,788.68x = 439,585,171,486.31 - Step 5: Solve for x
x = 439,585,171,486.31/707,788.68 - Step 6: Final answer
x = 621,068.38
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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.