Finding the Fourth Proportional to 939,972.22, 1,292,173.86 and 808,670.21
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Solution
The fourth proportional to 939,972.22, 1,292,173.86 and 808,670.21 is: 1,111,673.82
Step by Step Solution
- Step 1: Write the proportion equation
939,972.22 : 1,292,173.86 = 808,670.21 : x - Step 2: Convert to fraction form
939,972.22/1,292,173.86 = 808,670.21/x - Step 3: Cross multiply
939,972.22x = 1,292,173.86 × 808,670.21 - Step 4: Simplify right side
939,972.22x = 1,044,942,506,722.71 - Step 5: Solve for x
x = 1,044,942,506,722.71/939,972.22 - Step 6: Final answer
x = 1,111,673.82
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.