Finding the Fourth Proportional to 740,379.47, 1,021,881.57 and 508,124.18
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Solution
The fourth proportional to 740,379.47, 1,021,881.57 and 508,124.18 is: 701,319.73
Step by Step Solution
- Step 1: Write the proportion equation
740,379.47 : 1,021,881.57 = 508,124.18 : x - Step 2: Convert to fraction form
740,379.47/1,021,881.57 = 508,124.18/x - Step 3: Cross multiply
740,379.47x = 1,021,881.57 × 508,124.18 - Step 4: Simplify right side
740,379.47x = 519,242,729,703.96 - Step 5: Solve for x
x = 519,242,729,703.96/740,379.47 - Step 6: Final answer
x = 701,319.73
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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.