Finding the Fourth Proportional to 808,358.04, 1,115,518.57 and 445,815.41
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Solution
The fourth proportional to 808,358.04, 1,115,518.57 and 445,815.41 is: 615,216.70
Step by Step Solution
- Step 1: Write the proportion equation
808,358.04 : 1,115,518.57 = 445,815.41 : x - Step 2: Convert to fraction form
808,358.04/1,115,518.57 = 445,815.41/x - Step 3: Cross multiply
808,358.04x = 1,115,518.57 × 445,815.41 - Step 4: Simplify right side
808,358.04x = 497,315,361,955.03 - Step 5: Solve for x
x = 497,315,361,955.03/808,358.04 - Step 6: Final answer
x = 615,216.70
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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.