Finding the Fourth Proportional to 879,490.47, 1,214,454.35 and 553,347.26
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Solution
The fourth proportional to 879,490.47, 1,214,454.35 and 553,347.26 is: 764,095.81
Step by Step Solution
- Step 1: Write the proportion equation
879,490.47 : 1,214,454.35 = 553,347.26 : x - Step 2: Convert to fraction form
879,490.47/1,214,454.35 = 553,347.26/x - Step 3: Cross multiply
879,490.47x = 1,214,454.35 × 553,347.26 - Step 4: Simplify right side
879,490.47x = 672,014,986,967.58 - Step 5: Solve for x
x = 672,014,986,967.58/879,490.47 - Step 6: Final answer
x = 764,095.81
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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.