Finding the Fourth Proportional to 399,617.79, 596,511.50 and 349,171.93
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Solution
The fourth proportional to 399,617.79, 596,511.50 and 349,171.93 is: 521,210.71
Step by Step Solution
- Step 1: Write the proportion equation
399,617.79 : 596,511.50 = 349,171.93 : x - Step 2: Convert to fraction form
399,617.79/596,511.50 = 349,171.93/x - Step 3: Cross multiply
399,617.79x = 596,511.50 × 349,171.93 - Step 4: Simplify right side
399,617.79x = 208,285,071,722.20 - Step 5: Solve for x
x = 208,285,071,722.20/399,617.79 - Step 6: Final answer
x = 521,210.71
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.