Finding the Fourth Proportional to 680,798.68, 939,509.16 and 374,903.52
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Solution
The fourth proportional to 680,798.68, 939,509.16 and 374,903.52 is: 517,370.70
Step by Step Solution
- Step 1: Write the proportion equation
680,798.68 : 939,509.16 = 374,903.52 : x - Step 2: Convert to fraction form
680,798.68/939,509.16 = 374,903.52/x - Step 3: Cross multiply
680,798.68x = 939,509.16 × 374,903.52 - Step 4: Simplify right side
680,798.68x = 352,225,291,156.24 - Step 5: Solve for x
x = 352,225,291,156.24/680,798.68 - Step 6: Final answer
x = 517,370.70
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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.