Finding the Fourth Proportional to 1,331,503.80, 1,997,365.62 and 432,925.08
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Solution
The fourth proportional to 1,331,503.80, 1,997,365.62 and 432,925.08 is: 649,423.36
Step by Step Solution
- Step 1: Write the proportion equation
1,331,503.80 : 1,997,365.62 = 432,925.08 : x - Step 2: Convert to fraction form
1,331,503.80/1,997,365.62 = 432,925.08/x - Step 3: Cross multiply
1,331,503.80x = 1,997,365.62 × 432,925.08 - Step 4: Simplify right side
1,331,503.80x = 864,709,670,827.75 - Step 5: Solve for x
x = 864,709,670,827.75/1,331,503.80 - Step 6: Final answer
x = 649,423.36
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.