Finding the Fourth Proportional to 458,130.80, 686,029.80 and 437,135.60
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Solution
The fourth proportional to 458,130.80, 686,029.80 and 437,135.60 is: 654,590.45
Step by Step Solution
- Step 1: Write the proportion equation
458,130.80 : 686,029.80 = 437,135.60 : x - Step 2: Convert to fraction form
458,130.80/686,029.80 = 437,135.60/x - Step 3: Cross multiply
458,130.80x = 686,029.80 × 437,135.60 - Step 4: Simplify right side
458,130.80x = 299,888,048,240.88 - Step 5: Solve for x
x = 299,888,048,240.88/458,130.80 - Step 6: Final answer
x = 654,590.45
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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.