Finding the Fourth Proportional to 553,073.99, 763,256.87 and 311,365.74
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Solution
The fourth proportional to 553,073.99, 763,256.87 and 311,365.74 is: 429,693.03
Step by Step Solution
- Step 1: Write the proportion equation
553,073.99 : 763,256.87 = 311,365.74 : x - Step 2: Convert to fraction form
553,073.99/763,256.87 = 311,365.74/x - Step 3: Cross multiply
553,073.99x = 763,256.87 × 311,365.74 - Step 4: Simplify right side
553,073.99x = 237,652,037,099.76 - Step 5: Solve for x
x = 237,652,037,099.76/553,073.99 - Step 6: Final answer
x = 429,693.03
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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.