Finding the Fourth Proportional to 939,881.08, 1,409,358.54 and 340,752.28
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Solution
The fourth proportional to 939,881.08, 1,409,358.54 and 340,752.28 is: 510,960.53
Step by Step Solution
- Step 1: Write the proportion equation
939,881.08 : 1,409,358.54 = 340,752.28 : x - Step 2: Convert to fraction form
939,881.08/1,409,358.54 = 340,752.28/x - Step 3: Cross multiply
939,881.08x = 1,409,358.54 × 340,752.28 - Step 4: Simplify right side
939,881.08x = 480,242,135,842.47 - Step 5: Solve for x
x = 480,242,135,842.47/939,881.08 - Step 6: Final answer
x = 510,960.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.