Finding the Fourth Proportional to 648,202.80, 971,137.80 and 554,890.80
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Solution
The fourth proportional to 648,202.80, 971,137.80 and 554,890.80 is: 831,337.71
Step by Step Solution
- Step 1: Write the proportion equation
648,202.80 : 971,137.80 = 554,890.80 : x - Step 2: Convert to fraction form
648,202.80/971,137.80 = 554,890.80/x - Step 3: Cross multiply
648,202.80x = 971,137.80 × 554,890.80 - Step 4: Simplify right side
648,202.80x = 538,875,430,752.24 - Step 5: Solve for x
x = 538,875,430,752.24/648,202.80 - Step 6: Final answer
x = 831,337.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.