Finding the Fourth Proportional to 988,291.05, 1,363,987.92 and 625,748.55
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Solution
The fourth proportional to 988,291.05, 1,363,987.92 and 625,748.55 is: 863,625.61
Step by Step Solution
- Step 1: Write the proportion equation
988,291.05 : 1,363,987.92 = 625,748.55 : x - Step 2: Convert to fraction form
988,291.05/1,363,987.92 = 625,748.55/x - Step 3: Cross multiply
988,291.05x = 1,363,987.92 × 625,748.55 - Step 4: Simplify right side
988,291.05x = 853,513,463,157.52 - Step 5: Solve for x
x = 853,513,463,157.52/988,291.05 - Step 6: Final answer
x = 863,625.61
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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.