Finding the Fourth Proportional to 2,900,358.20, 4,348,809.30 and 1,779,231.80
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Solution
The fourth proportional to 2,900,358.20, 4,348,809.30 and 1,779,231.80 is: 2,667,787.65
Step by Step Solution
- Step 1: Write the proportion equation
2,900,358.20 : 4,348,809.30 = 1,779,231.80 : x - Step 2: Convert to fraction form
2,900,358.20/4,348,809.30 = 1,779,231.80/x - Step 3: Cross multiply
2,900,358.20x = 4,348,809.30 × 1,779,231.80 - Step 4: Simplify right side
2,900,358.20x = 7,737,539,798,695.74 - Step 5: Solve for x
x = 7,737,539,798,695.74/2,900,358.20 - Step 6: Final answer
x = 2,667,787.65
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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.