Finding the Fourth Proportional to 778,801.60, 1,168,202.40 and 330,029.20
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Solution
The fourth proportional to 778,801.60, 1,168,202.40 and 330,029.20 is: 495,043.80
Step by Step Solution
- Step 1: Write the proportion equation
778,801.60 : 1,168,202.40 = 330,029.20 : x - Step 2: Convert to fraction form
778,801.60/1,168,202.40 = 330,029.20/x - Step 3: Cross multiply
778,801.60x = 1,168,202.40 × 330,029.20 - Step 4: Simplify right side
778,801.60x = 385,540,903,510.08 - Step 5: Solve for x
x = 385,540,903,510.08/778,801.60 - Step 6: Final answer
x = 495,043.80
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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.