Finding the Fourth Proportional to 717,953.80, 1,076,930.70 and 577,985.80
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Solution
The fourth proportional to 717,953.80, 1,076,930.70 and 577,985.80 is: 866,978.70
Step by Step Solution
- Step 1: Write the proportion equation
717,953.80 : 1,076,930.70 = 577,985.80 : x - Step 2: Convert to fraction form
717,953.80/1,076,930.70 = 577,985.80/x - Step 3: Cross multiply
717,953.80x = 1,076,930.70 × 577,985.80 - Step 4: Simplify right side
717,953.80x = 622,450,652,184.06 - Step 5: Solve for x
x = 622,450,652,184.06/717,953.80 - Step 6: Final answer
x = 866,978.70
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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.