Finding the Fourth Proportional to 607,766.60, 912,470.70 and 355,305.80
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Solution
The fourth proportional to 607,766.60, 912,470.70 and 355,305.80 is: 533,438.55
Step by Step Solution
- Step 1: Write the proportion equation
607,766.60 : 912,470.70 = 355,305.80 : x - Step 2: Convert to fraction form
607,766.60/912,470.70 = 355,305.80/x - Step 3: Cross multiply
607,766.60x = 912,470.70 × 355,305.80 - Step 4: Simplify right side
607,766.60x = 324,206,132,040.06 - Step 5: Solve for x
x = 324,206,132,040.06/607,766.60 - Step 6: Final answer
x = 533,438.55
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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.