Finding the Fourth Proportional to 778,428.62, 1,074,308.59 and 472,480.99
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Solution
The fourth proportional to 778,428.62, 1,074,308.59 and 472,480.99 is: 652,070.56
Step by Step Solution
- Step 1: Write the proportion equation
778,428.62 : 1,074,308.59 = 472,480.99 : x - Step 2: Convert to fraction form
778,428.62/1,074,308.59 = 472,480.99/x - Step 3: Cross multiply
778,428.62x = 1,074,308.59 × 472,480.99 - Step 4: Simplify right side
778,428.62x = 507,590,384,073.53 - Step 5: Solve for x
x = 507,590,384,073.53/778,428.62 - Step 6: Final answer
x = 652,070.56
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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.