Finding the Fourth Proportional to 990,871.79, 1,367,319.59 and 549,358.18
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Solution
The fourth proportional to 990,871.79, 1,367,319.59 and 549,358.18 is: 758,068.00
Step by Step Solution
- Step 1: Write the proportion equation
990,871.79 : 1,367,319.59 = 549,358.18 : x - Step 2: Convert to fraction form
990,871.79/1,367,319.59 = 549,358.18/x - Step 3: Cross multiply
990,871.79x = 1,367,319.59 × 549,358.18 - Step 4: Simplify right side
990,871.79x = 751,148,191,857.36 - Step 5: Solve for x
x = 751,148,191,857.36/990,871.79 - Step 6: Final answer
x = 758,068.00
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.