Finding the Fourth Proportional to 1,077,489.84, 1,616,242.87 and 478,289.91
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Solution
The fourth proportional to 1,077,489.84, 1,616,242.87 and 478,289.91 is: 717,438.47
Step by Step Solution
- Step 1: Write the proportion equation
1,077,489.84 : 1,616,242.87 = 478,289.91 : x - Step 2: Convert to fraction form
1,077,489.84/1,616,242.87 = 478,289.91/x - Step 3: Cross multiply
1,077,489.84x = 1,616,242.87 × 478,289.91 - Step 4: Simplify right side
1,077,489.84x = 773,032,660,798.83 - Step 5: Solve for x
x = 773,032,660,798.83/1,077,489.84 - Step 6: Final answer
x = 717,438.47
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.