Finding the Fourth Proportional to 608,681.30, 913,123.95 and 209,305.94
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Solution
The fourth proportional to 608,681.30, 913,123.95 and 209,305.94 is: 313,993.98
Step by Step Solution
- Step 1: Write the proportion equation
608,681.30 : 913,123.95 = 209,305.94 : x - Step 2: Convert to fraction form
608,681.30/913,123.95 = 209,305.94/x - Step 3: Cross multiply
608,681.30x = 913,123.95 × 209,305.94 - Step 4: Simplify right side
608,681.30x = 191,122,266,691.26 - Step 5: Solve for x
x = 191,122,266,691.26/608,681.30 - Step 6: Final answer
x = 313,993.98
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.