Finding the Fourth Proportional to 628,141.60, 941,920.80 and 272,972.80
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Solution
The fourth proportional to 628,141.60, 941,920.80 and 272,972.80 is: 409,332.48
Step by Step Solution
- Step 1: Write the proportion equation
628,141.60 : 941,920.80 = 272,972.80 : x - Step 2: Convert to fraction form
628,141.60/941,920.80 = 272,972.80/x - Step 3: Cross multiply
628,141.60x = 941,920.80 × 272,972.80 - Step 4: Simplify right side
628,141.60x = 257,118,758,154.24 - Step 5: Solve for x
x = 257,118,758,154.24/628,141.60 - Step 6: Final answer
x = 409,332.48
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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.