Finding the Fourth Proportional to 907,408.83, 1,252,202.06 and 499,507.02
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Solution
The fourth proportional to 907,408.83, 1,252,202.06 and 499,507.02 is: 689,307.51
Step by Step Solution
- Step 1: Write the proportion equation
907,408.83 : 1,252,202.06 = 499,507.02 : x - Step 2: Convert to fraction form
907,408.83/1,252,202.06 = 499,507.02/x - Step 3: Cross multiply
907,408.83x = 1,252,202.06 × 499,507.02 - Step 4: Simplify right side
907,408.83x = 625,483,719,428.46 - Step 5: Solve for x
x = 625,483,719,428.46/907,408.83 - Step 6: Final answer
x = 689,307.51
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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.