Finding the Fourth Proportional to 935,778.74, 1,291,389.42 and 527,888.54
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Solution
The fourth proportional to 935,778.74, 1,291,389.42 and 527,888.54 is: 728,494.51
Step by Step Solution
- Step 1: Write the proportion equation
935,778.74 : 1,291,389.42 = 527,888.54 : x - Step 2: Convert to fraction form
935,778.74/1,291,389.42 = 527,888.54/x - Step 3: Cross multiply
935,778.74x = 1,291,389.42 × 527,888.54 - Step 4: Simplify right side
935,778.74x = 681,709,675,495.25 - Step 5: Solve for x
x = 681,709,675,495.25/935,778.74 - Step 6: Final answer
x = 728,494.51
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1.5x scale
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.