Finding the Fourth Proportional to 905,602.70, 1,358,404.05 and 433,210.70
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Solution
The fourth proportional to 905,602.70, 1,358,404.05 and 433,210.70 is: 649,816.05
Step by Step Solution
- Step 1: Write the proportion equation
905,602.70 : 1,358,404.05 = 433,210.70 : x - Step 2: Convert to fraction form
905,602.70/1,358,404.05 = 433,210.70/x - Step 3: Cross multiply
905,602.70x = 1,358,404.05 × 433,210.70 - Step 4: Simplify right side
905,602.70x = 588,475,169,383.34 - Step 5: Solve for x
x = 588,475,169,383.34/905,602.70 - Step 6: Final answer
x = 649,816.05
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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.