Finding the Fourth Proportional to 930,432.40, 1,395,648.60 and 611,567.80
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Solution
The fourth proportional to 930,432.40, 1,395,648.60 and 611,567.80 is: 917,351.70
Step by Step Solution
- Step 1: Write the proportion equation
930,432.40 : 1,395,648.60 = 611,567.80 : x - Step 2: Convert to fraction form
930,432.40/1,395,648.60 = 611,567.80/x - Step 3: Cross multiply
930,432.40x = 1,395,648.60 × 611,567.80 - Step 4: Simplify right side
930,432.40x = 853,533,743,875.08 - Step 5: Solve for x
x = 853,533,743,875.08/930,432.40 - Step 6: Final answer
x = 917,351.70
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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.