Finding the Fourth Proportional to 2,929,828.21, 4,042,779.50 and 1,689,484.36
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Solution
The fourth proportional to 2,929,828.21, 4,042,779.50 and 1,689,484.36 is: 2,331,267.31
Step by Step Solution
- Step 1: Write the proportion equation
2,929,828.21 : 4,042,779.50 = 1,689,484.36 : x - Step 2: Convert to fraction form
2,929,828.21/4,042,779.50 = 1,689,484.36/x - Step 3: Cross multiply
2,929,828.21x = 4,042,779.50 × 1,689,484.36 - Step 4: Simplify right side
2,929,828.21x = 6,830,212,736,178.62 - Step 5: Solve for x
x = 6,830,212,736,178.62/2,929,828.21 - Step 6: Final answer
x = 2,331,267.31
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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.