Finding the Fourth Proportional to 977,434.76, 1,472,811.34 and 803,830.70
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Solution
The fourth proportional to 977,434.76, 1,472,811.34 and 803,830.70 is: 1,211,222.50
Step by Step Solution
- Step 1: Write the proportion equation
977,434.76 : 1,472,811.34 = 803,830.70 : x - Step 2: Convert to fraction form
977,434.76/1,472,811.34 = 803,830.70/x - Step 3: Cross multiply
977,434.76x = 1,472,811.34 × 803,830.70 - Step 4: Simplify right side
977,434.76x = 1,183,890,970,400.14 - Step 5: Solve for x
x = 1,183,890,970,400.14/977,434.76 - Step 6: Final answer
x = 1,211,222.50
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.