Finding the Fourth Proportional to 745,830.72, 1,029,237.12 and 406,291.68
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Solution
The fourth proportional to 745,830.72, 1,029,237.12 and 406,291.68 is: 560,677.47
Step by Step Solution
- Step 1: Write the proportion equation
745,830.72 : 1,029,237.12 = 406,291.68 : x - Step 2: Convert to fraction form
745,830.72/1,029,237.12 = 406,291.68/x - Step 3: Cross multiply
745,830.72x = 1,029,237.12 × 406,291.68 - Step 4: Simplify right side
745,830.72x = 418,170,478,603.16 - Step 5: Solve for x
x = 418,170,478,603.16/745,830.72 - Step 6: Final answer
x = 560,677.47
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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.