Finding the Fourth Proportional to 1,332,688.68, 1,999,031.40 and 434,128.95
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Solution
The fourth proportional to 1,332,688.68, 1,999,031.40 and 434,128.95 is: 651,192.90
Step by Step Solution
- Step 1: Write the proportion equation
1,332,688.68 : 1,999,031.40 = 434,128.95 : x - Step 2: Convert to fraction form
1,332,688.68/1,999,031.40 = 434,128.95/x - Step 3: Cross multiply
1,332,688.68x = 1,999,031.40 × 434,128.95 - Step 4: Simplify right side
1,332,688.68x = 867,837,401,613.71 - Step 5: Solve for x
x = 867,837,401,613.71/1,332,688.68 - Step 6: Final answer
x = 651,192.90
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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.