Finding the Fourth Proportional to 1,539,421.79, 2,124,461.16 and 1,022,281.65
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Solution
The fourth proportional to 1,539,421.79, 2,124,461.16 and 1,022,281.65 is: 1,410,787.92
Step by Step Solution
- Step 1: Write the proportion equation
1,539,421.79 : 2,124,461.16 = 1,022,281.65 : x - Step 2: Convert to fraction form
1,539,421.79/2,124,461.16 = 1,022,281.65/x - Step 3: Cross multiply
1,539,421.79x = 2,124,461.16 × 1,022,281.65 - Step 4: Simplify right side
1,539,421.79x = 2,171,797,660,005.71 - Step 5: Solve for x
x = 2,171,797,660,005.71/1,539,421.79 - Step 6: Final answer
x = 1,410,787.92
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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.