Finding the Fourth Proportional to 560,109.74, 772,921.04 and 318,358.76
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Solution
The fourth proportional to 560,109.74, 772,921.04 and 318,358.76 is: 439,317.80
Step by Step Solution
- Step 1: Write the proportion equation
560,109.74 : 772,921.04 = 318,358.76 : x - Step 2: Convert to fraction form
560,109.74/772,921.04 = 318,358.76/x - Step 3: Cross multiply
560,109.74x = 772,921.04 × 318,358.76 - Step 4: Simplify right side
560,109.74x = 246,066,178,415.91 - Step 5: Solve for x
x = 246,066,178,415.91/560,109.74 - Step 6: Final answer
x = 439,317.80
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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.