Finding the Fourth Proportional to 918,717.98, 1,378,260.91 and 514,485.04
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Solution
The fourth proportional to 918,717.98, 1,378,260.91 and 514,485.04 is: 771,830.58
Step by Step Solution
- Step 1: Write the proportion equation
918,717.98 : 1,378,260.91 = 514,485.04 : x - Step 2: Convert to fraction form
918,717.98/1,378,260.91 = 514,485.04/x - Step 3: Cross multiply
918,717.98x = 1,378,260.91 × 514,485.04 - Step 4: Simplify right side
918,717.98x = 709,094,624,516.83 - Step 5: Solve for x
x = 709,094,624,516.83/918,717.98 - Step 6: Final answer
x = 771,830.58
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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.