Finding the Fourth Proportional to 742,376.84, 1,024,482.74 and 402,845.09
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Solution
The fourth proportional to 742,376.84, 1,024,482.74 and 402,845.09 is: 555,927.68
Step by Step Solution
- Step 1: Write the proportion equation
742,376.84 : 1,024,482.74 = 402,845.09 : x - Step 2: Convert to fraction form
742,376.84/1,024,482.74 = 402,845.09/x - Step 3: Cross multiply
742,376.84x = 1,024,482.74 × 402,845.09 - Step 4: Simplify right side
742,376.84x = 412,707,834,462.11 - Step 5: Solve for x
x = 412,707,834,462.11/742,376.84 - Step 6: Final answer
x = 555,927.68
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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.