Finding the Fourth Proportional to 724,762.08, 1,000,010.61 and 438,276.02
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Solution
The fourth proportional to 724,762.08, 1,000,010.61 and 438,276.02 is: 604,723.50
Step by Step Solution
- Step 1: Write the proportion equation
724,762.08 : 1,000,010.61 = 438,276.02 : x - Step 2: Convert to fraction form
724,762.08/1,000,010.61 = 438,276.02/x - Step 3: Cross multiply
724,762.08x = 1,000,010.61 × 438,276.02 - Step 4: Simplify right side
724,762.08x = 438,280,665,108.52 - Step 5: Solve for x
x = 438,280,665,108.52/724,762.08 - Step 6: Final answer
x = 604,723.50
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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.