Finding the Fourth Proportional to 2,187,000.14, 3,018,062.08 and 1,220,130.63
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Solution
The fourth proportional to 2,187,000.14, 3,018,062.08 and 1,220,130.63 is: 1,683,781.32
Step by Step Solution
- Step 1: Write the proportion equation
2,187,000.14 : 3,018,062.08 = 1,220,130.63 : x - Step 2: Convert to fraction form
2,187,000.14/3,018,062.08 = 1,220,130.63/x - Step 3: Cross multiply
2,187,000.14x = 3,018,062.08 × 1,220,130.63 - Step 4: Simplify right side
2,187,000.14x = 3,682,429,977,256.94 - Step 5: Solve for x
x = 3,682,429,977,256.94/2,187,000.14 - Step 6: Final answer
x = 1,683,781.32
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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.