Finding the Fourth Proportional to 715,072.13, 986,555.12 and 409,037.02
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Solution
The fourth proportional to 715,072.13, 986,555.12 and 409,037.02 is: 564,331.26
Step by Step Solution
- Step 1: Write the proportion equation
715,072.13 : 986,555.12 = 409,037.02 : x - Step 2: Convert to fraction form
715,072.13/986,555.12 = 409,037.02/x - Step 3: Cross multiply
715,072.13x = 986,555.12 × 409,037.02 - Step 4: Simplify right side
715,072.13x = 403,537,559,372.58 - Step 5: Solve for x
x = 403,537,559,372.58/715,072.13 - Step 6: Final answer
x = 564,331.26
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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.