Finding the Fourth Proportional to 916,828.74, 1,376,148.18 and 688,329.63
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Solution
The fourth proportional to 916,828.74, 1,376,148.18 and 688,329.63 is: 1,033,173.95
Step by Step Solution
- Step 1: Write the proportion equation
916,828.74 : 1,376,148.18 = 688,329.63 : x - Step 2: Convert to fraction form
916,828.74/1,376,148.18 = 688,329.63/x - Step 3: Cross multiply
916,828.74x = 1,376,148.18 × 688,329.63 - Step 4: Simplify right side
916,828.74x = 947,243,570,145.81 - Step 5: Solve for x
x = 947,243,570,145.81/916,828.74 - Step 6: Final answer
x = 1,033,173.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.