Finding the Fourth Proportional to 879,085.12, 1,319,169.12 and 346,515.52
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Solution
The fourth proportional to 879,085.12, 1,319,169.12 and 346,515.52 is: 519,986.70
Step by Step Solution
- Step 1: Write the proportion equation
879,085.12 : 1,319,169.12 = 346,515.52 : x - Step 2: Convert to fraction form
879,085.12/1,319,169.12 = 346,515.52/x - Step 3: Cross multiply
879,085.12x = 1,319,169.12 × 346,515.52 - Step 4: Simplify right side
879,085.12x = 457,112,573,584.74 - Step 5: Solve for x
x = 457,112,573,584.74/879,085.12 - Step 6: Final answer
x = 519,986.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.