Finding the Fourth Proportional to 778,094.11, 1,073,778.08 and 438,562.36
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Solution
The fourth proportional to 778,094.11, 1,073,778.08 and 438,562.36 is: 605,220.68
Step by Step Solution
- Step 1: Write the proportion equation
778,094.11 : 1,073,778.08 = 438,562.36 : x - Step 2: Convert to fraction form
778,094.11/1,073,778.08 = 438,562.36/x - Step 3: Cross multiply
778,094.11x = 1,073,778.08 × 438,562.36 - Step 4: Simplify right side
778,094.11x = 470,918,648,881.07 - Step 5: Solve for x
x = 470,918,648,881.07/778,094.11 - Step 6: Final answer
x = 605,220.68
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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.