Finding the Fourth Proportional to 1,437,743.02, 2,155,478.20 and 717,715.18
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Solution
The fourth proportional to 1,437,743.02, 2,155,478.20 and 717,715.18 is: 1,076,005.52
Step by Step Solution
- Step 1: Write the proportion equation
1,437,743.02 : 2,155,478.20 = 717,715.18 : x - Step 2: Convert to fraction form
1,437,743.02/2,155,478.20 = 717,715.18/x - Step 3: Cross multiply
1,437,743.02x = 2,155,478.20 × 717,715.18 - Step 4: Simplify right side
1,437,743.02x = 1,547,019,424,299.08 - Step 5: Solve for x
x = 1,547,019,424,299.08/1,437,743.02 - Step 6: Final answer
x = 1,076,005.52
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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.