Finding the Fourth Proportional to 719,133.60, 1,079,002.80 and 386,320.80
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Solution
The fourth proportional to 719,133.60, 1,079,002.80 and 386,320.80 is: 579,643.65
Step by Step Solution
- Step 1: Write the proportion equation
719,133.60 : 1,079,002.80 = 386,320.80 : x - Step 2: Convert to fraction form
719,133.60/1,079,002.80 = 386,320.80/x - Step 3: Cross multiply
719,133.60x = 1,079,002.80 × 386,320.80 - Step 4: Simplify right side
719,133.60x = 416,841,224,898.24 - Step 5: Solve for x
x = 416,841,224,898.24/719,133.60 - Step 6: Final answer
x = 579,643.65
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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.