Finding the Fourth Proportional to 959,718.74, 1,439,574 and 390,972.98
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Solution
The fourth proportional to 959,718.74, 1,439,574 and 390,972.98 is: 586,457.79
Step by Step Solution
- Step 1: Write the proportion equation
959,718.74 : 1,439,574 = 390,972.98 : x - Step 2: Convert to fraction form
959,718.74/1,439,574 = 390,972.98/x - Step 3: Cross multiply
959,718.74x = 1,439,574 × 390,972.98 - Step 4: Simplify right side
959,718.74x = 562,834,529,512.65 - Step 5: Solve for x
x = 562,834,529,512.65/959,718.74 - Step 6: Final answer
x = 586,457.79
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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.