Finding the Fourth Proportional to 977,662.01, 1,349,312.61 and 542,176.21
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Solution
The fourth proportional to 977,662.01, 1,349,312.61 and 542,176.21 is: 748,280.28
Step by Step Solution
- Step 1: Write the proportion equation
977,662.01 : 1,349,312.61 = 542,176.21 : x - Step 2: Convert to fraction form
977,662.01/1,349,312.61 = 542,176.21/x - Step 3: Cross multiply
977,662.01x = 1,349,312.61 × 542,176.21 - Step 4: Simplify right side
977,662.01x = 731,565,199,935.98 - Step 5: Solve for x
x = 731,565,199,935.98/977,662.01 - Step 6: Final answer
x = 748,280.28
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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.