Finding the Fourth Proportional to 528,680.04, 729,566.84 and 286,963.08
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Solution
The fourth proportional to 528,680.04, 729,566.84 and 286,963.08 is: 396,002.75
Step by Step Solution
- Step 1: Write the proportion equation
528,680.04 : 729,566.84 = 286,963.08 : x - Step 2: Convert to fraction form
528,680.04/729,566.84 = 286,963.08/x - Step 3: Cross multiply
528,680.04x = 729,566.84 × 286,963.08 - Step 4: Simplify right side
528,680.04x = 209,358,747,472.27 - Step 5: Solve for x
x = 209,358,747,472.27/528,680.04 - Step 6: Final answer
x = 396,002.75
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1.5x scale
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.