Finding the Fourth Proportional to 742,820.40, 1,026,053.73 and 614,278.09
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Solution
The fourth proportional to 742,820.40, 1,026,053.73 and 614,278.09 is: 848,498.94
Step by Step Solution
- Step 1: Write the proportion equation
742,820.40 : 1,026,053.73 = 614,278.09 : x - Step 2: Convert to fraction form
742,820.40/1,026,053.73 = 614,278.09/x - Step 3: Cross multiply
742,820.40x = 1,026,053.73 × 614,278.09 - Step 4: Simplify right side
742,820.40x = 630,282,325,501.78 - Step 5: Solve for x
x = 630,282,325,501.78/742,820.40 - Step 6: Final answer
x = 848,498.94
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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.