Finding the Fourth Proportional to 674,389.60, 930,646.79 and 368,459.42
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Solution
The fourth proportional to 674,389.60, 930,646.79 and 368,459.42 is: 508,468.06
Step by Step Solution
- Step 1: Write the proportion equation
674,389.60 : 930,646.79 = 368,459.42 : x - Step 2: Convert to fraction form
674,389.60/930,646.79 = 368,459.42/x - Step 3: Cross multiply
674,389.60x = 930,646.79 × 368,459.42 - Step 4: Simplify right side
674,389.60x = 342,905,574,844.38 - Step 5: Solve for x
x = 342,905,574,844.38/674,389.60 - Step 6: Final answer
x = 508,468.06
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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.