Finding the Fourth Proportional to 1,918,542.99, 2,877,138.93 and 638,802.93
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Solution
The fourth proportional to 1,918,542.99, 2,877,138.93 and 638,802.93 is: 957,979.46
Step by Step Solution
- Step 1: Write the proportion equation
1,918,542.99 : 2,877,138.93 = 638,802.93 : x - Step 2: Convert to fraction form
1,918,542.99/2,877,138.93 = 638,802.93/x - Step 3: Cross multiply
1,918,542.99x = 2,877,138.93 × 638,802.93 - Step 4: Simplify right side
1,918,542.99x = 1,837,924,778,501.07 - Step 5: Solve for x
x = 1,837,924,778,501.07/1,918,542.99 - Step 6: Final answer
x = 957,979.46
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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.