Finding the Fourth Proportional to 840,852.13, 1,160,403.08 and 478,266.66
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Solution
The fourth proportional to 840,852.13, 1,160,403.08 and 478,266.66 is: 660,023.43
Step by Step Solution
- Step 1: Write the proportion equation
840,852.13 : 1,160,403.08 = 478,266.66 : x - Step 2: Convert to fraction form
840,852.13/1,160,403.08 = 478,266.66/x - Step 3: Cross multiply
840,852.13x = 1,160,403.08 × 478,266.66 - Step 4: Simplify right side
840,852.13x = 554,982,105,325.31 - Step 5: Solve for x
x = 554,982,105,325.31/840,852.13 - Step 6: Final answer
x = 660,023.43
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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.