Finding the Fourth Proportional to 724,763.08, 1,000,011.99 and 438,277.02
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Solution
The fourth proportional to 724,763.08, 1,000,011.99 and 438,277.02 is: 604,724.89
Step by Step Solution
- Step 1: Write the proportion equation
724,763.08 : 1,000,011.99 = 438,277.02 : x - Step 2: Convert to fraction form
724,763.08/1,000,011.99 = 438,277.02/x - Step 3: Cross multiply
724,763.08x = 1,000,011.99 × 438,277.02 - Step 4: Simplify right side
724,763.08x = 438,282,274,941.47 - Step 5: Solve for x
x = 438,282,274,941.47/724,763.08 - Step 6: Final answer
x = 604,724.89
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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.