Finding the Fourth Proportional to 977,595.98, 1,349,162.30 and 542,149.70
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Solution
The fourth proportional to 977,595.98, 1,349,162.30 and 542,149.70 is: 748,210.87
Step by Step Solution
- Step 1: Write the proportion equation
977,595.98 : 1,349,162.30 = 542,149.70 : x - Step 2: Convert to fraction form
977,595.98/1,349,162.30 = 542,149.70/x - Step 3: Cross multiply
977,595.98x = 1,349,162.30 × 542,149.70 - Step 4: Simplify right side
977,595.98x = 731,447,936,196.31 - Step 5: Solve for x
x = 731,447,936,196.31/977,595.98 - Step 6: Final answer
x = 748,210.87
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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.