Finding the Fourth Proportional to 918,129.80, 1,377,194.70 and 708,177.80
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Solution
The fourth proportional to 918,129.80, 1,377,194.70 and 708,177.80 is: 1,062,266.70
Step by Step Solution
- Step 1: Write the proportion equation
918,129.80 : 1,377,194.70 = 708,177.80 : x - Step 2: Convert to fraction form
918,129.80/1,377,194.70 = 708,177.80/x - Step 3: Cross multiply
918,129.80x = 1,377,194.70 × 708,177.80 - Step 4: Simplify right side
918,129.80x = 975,298,712,817.66 - Step 5: Solve for x
x = 975,298,712,817.66/918,129.80 - Step 6: Final answer
x = 1,062,266.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.