Finding the Fourth Proportional to 1,115,555.36, 1,539,478.40 and 606,257.84
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Solution
The fourth proportional to 1,115,555.36, 1,539,478.40 and 606,257.84 is: 836,642.34
Step by Step Solution
- Step 1: Write the proportion equation
1,115,555.36 : 1,539,478.40 = 606,257.84 : x - Step 2: Convert to fraction form
1,115,555.36/1,539,478.40 = 606,257.84/x - Step 3: Cross multiply
1,115,555.36x = 1,539,478.40 × 606,257.84 - Step 4: Simplify right side
1,115,555.36x = 933,320,849,510.66 - Step 5: Solve for x
x = 933,320,849,510.66/1,115,555.36 - Step 6: Final answer
x = 836,642.34
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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.