Finding the Fourth Proportional to 660,445.08, 911,417.58 and 358,639.08
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Solution
The fourth proportional to 660,445.08, 911,417.58 and 358,639.08 is: 494,923.76
Step by Step Solution
- Step 1: Write the proportion equation
660,445.08 : 911,417.58 = 358,639.08 : x - Step 2: Convert to fraction form
660,445.08/911,417.58 = 358,639.08/x - Step 3: Cross multiply
660,445.08x = 911,417.58 × 358,639.08 - Step 4: Simplify right side
660,445.08x = 326,869,962,387.03 - Step 5: Solve for x
x = 326,869,962,387.03/660,445.08 - Step 6: Final answer
x = 494,923.76
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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.