Finding the Fourth Proportional to 657,860.16, 907,840.56 and 371,374.08
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Solution
The fourth proportional to 657,860.16, 907,840.56 and 371,374.08 is: 512,492.58
Step by Step Solution
- Step 1: Write the proportion equation
657,860.16 : 907,840.56 = 371,374.08 : x - Step 2: Convert to fraction form
657,860.16/907,840.56 = 371,374.08/x - Step 3: Cross multiply
657,860.16x = 907,840.56 × 371,374.08 - Step 4: Simplify right side
657,860.16x = 337,148,452,756.69 - Step 5: Solve for x
x = 337,148,452,756.69/657,860.16 - Step 6: Final answer
x = 512,492.58
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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.