Finding the Fourth Proportional to 812,754.81, 1,122,149.70 and 507,296.52
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Solution
The fourth proportional to 812,754.81, 1,122,149.70 and 507,296.52 is: 700,411.28
Step by Step Solution
- Step 1: Write the proportion equation
812,754.81 : 1,122,149.70 = 507,296.52 : x - Step 2: Convert to fraction form
812,754.81/1,122,149.70 = 507,296.52/x - Step 3: Cross multiply
812,754.81x = 1,122,149.70 × 507,296.52 - Step 4: Simplify right side
812,754.81x = 569,262,637,729.04 - Step 5: Solve for x
x = 569,262,637,729.04/812,754.81 - Step 6: Final answer
x = 700,411.28
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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.