Finding the Fourth Proportional to 521,897.95, 720,206.99 and 307,051.87
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Solution
The fourth proportional to 521,897.95, 720,206.99 and 307,051.87 is: 423,724.41
Step by Step Solution
- Step 1: Write the proportion equation
521,897.95 : 720,206.99 = 307,051.87 : x - Step 2: Convert to fraction form
521,897.95/720,206.99 = 307,051.87/x - Step 3: Cross multiply
521,897.95x = 720,206.99 × 307,051.87 - Step 4: Simplify right side
521,897.95x = 221,140,901,531.31 - Step 5: Solve for x
x = 221,140,901,531.31/521,897.95 - Step 6: Final answer
x = 423,724.41
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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.