Finding the Fourth Proportional to 909,439.68, 1,363,784.18 and 310,449.16
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Solution
The fourth proportional to 909,439.68, 1,363,784.18 and 310,449.16 is: 465,545.61
Step by Step Solution
- Step 1: Write the proportion equation
909,439.68 : 1,363,784.18 = 310,449.16 : x - Step 2: Convert to fraction form
909,439.68/1,363,784.18 = 310,449.16/x - Step 3: Cross multiply
909,439.68x = 1,363,784.18 × 310,449.16 - Step 4: Simplify right side
909,439.68x = 423,385,653,102.29 - Step 5: Solve for x
x = 423,385,653,102.29/909,439.68 - Step 6: Final answer
x = 465,545.61
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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.