Finding the Fourth Proportional to 831,079.80, 1,243,509.30 and 551,143.80
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Solution
The fourth proportional to 831,079.80, 1,243,509.30 and 551,143.80 is: 824,652.99
Step by Step Solution
- Step 1: Write the proportion equation
831,079.80 : 1,243,509.30 = 551,143.80 : x - Step 2: Convert to fraction form
831,079.80/1,243,509.30 = 551,143.80/x - Step 3: Cross multiply
831,079.80x = 1,243,509.30 × 551,143.80 - Step 4: Simplify right side
831,079.80x = 685,352,440,937.34 - Step 5: Solve for x
x = 685,352,440,937.34/831,079.80 - Step 6: Final answer
x = 824,652.99
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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.