Finding the Fourth Proportional to 986,646.98, 1,361,576.86 and 533,937.98
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Solution
The fourth proportional to 986,646.98, 1,361,576.86 and 533,937.98 is: 736,836.59
Step by Step Solution
- Step 1: Write the proportion equation
986,646.98 : 1,361,576.86 = 533,937.98 : x - Step 2: Convert to fraction form
986,646.98/1,361,576.86 = 533,937.98/x - Step 3: Cross multiply
986,646.98x = 1,361,576.86 × 533,937.98 - Step 4: Simplify right side
986,646.98x = 726,997,598,243.14 - Step 5: Solve for x
x = 726,997,598,243.14/986,646.98 - Step 6: Final answer
x = 736,836.59
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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.