Finding the Fourth Proportional to 660,569.80, 911,552.34 and 358,763.08
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Solution
The fourth proportional to 660,569.80, 911,552.34 and 358,763.08 is: 495,074.59
Step by Step Solution
- Step 1: Write the proportion equation
660,569.80 : 911,552.34 = 358,763.08 : x - Step 2: Convert to fraction form
660,569.80/911,552.34 = 358,763.08/x - Step 3: Cross multiply
660,569.80x = 911,552.34 × 358,763.08 - Step 4: Simplify right side
660,569.80x = 327,031,325,079.61 - Step 5: Solve for x
x = 327,031,325,079.61/660,569.80 - Step 6: Final answer
x = 495,074.59
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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.