Finding the Fourth Proportional to 2,190,927.18, 3,023,423.70 and 1,224,064.71
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Solution
The fourth proportional to 2,190,927.18, 3,023,423.70 and 1,224,064.71 is: 1,689,178.11
Step by Step Solution
- Step 1: Write the proportion equation
2,190,927.18 : 3,023,423.70 = 1,224,064.71 : x - Step 2: Convert to fraction form
2,190,927.18/3,023,423.70 = 1,224,064.71/x - Step 3: Cross multiply
2,190,927.18x = 3,023,423.70 × 1,224,064.71 - Step 4: Simplify right side
2,190,927.18x = 3,700,866,239,430.51 - Step 5: Solve for x
x = 3,700,866,239,430.51/2,190,927.18 - Step 6: Final answer
x = 1,689,178.11
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.