Finding the Fourth Proportional to 1,072,176.58, 1,607,908.05 and 432,315.05
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Solution
The fourth proportional to 1,072,176.58, 1,607,908.05 and 432,315.05 is: 648,328.70
Step by Step Solution
- Step 1: Write the proportion equation
1,072,176.58 : 1,607,908.05 = 432,315.05 : x - Step 2: Convert to fraction form
1,072,176.58/1,607,908.05 = 432,315.05/x - Step 3: Cross multiply
1,072,176.58x = 1,607,908.05 × 432,315.05 - Step 4: Simplify right side
1,072,176.58x = 695,122,849,031.15 - Step 5: Solve for x
x = 695,122,849,031.15/1,072,176.58 - Step 6: Final answer
x = 648,328.70
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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.