Finding the Fourth Proportional to 907,681.55, 1,252,631.59 and 499,811.51
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Solution
The fourth proportional to 907,681.55, 1,252,631.59 and 499,811.51 is: 689,756.99
Step by Step Solution
- Step 1: Write the proportion equation
907,681.55 : 1,252,631.59 = 499,811.51 : x - Step 2: Convert to fraction form
907,681.55/1,252,631.59 = 499,811.51/x - Step 3: Cross multiply
907,681.55x = 1,252,631.59 × 499,811.51 - Step 4: Simplify right side
907,681.55x = 626,079,688,353.65 - Step 5: Solve for x
x = 626,079,688,353.65/907,681.55 - Step 6: Final answer
x = 689,756.99
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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.