Finding the Fourth Proportional to 970,289.08, 1,338,882.70 and 556,804.60
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Solution
The fourth proportional to 970,289.08, 1,338,882.70 and 556,804.60 is: 768,323.65
Step by Step Solution
- Step 1: Write the proportion equation
970,289.08 : 1,338,882.70 = 556,804.60 : x - Step 2: Convert to fraction form
970,289.08/1,338,882.70 = 556,804.60/x - Step 3: Cross multiply
970,289.08x = 1,338,882.70 × 556,804.60 - Step 4: Simplify right side
970,289.08x = 745,496,046,220.42 - Step 5: Solve for x
x = 745,496,046,220.42/970,289.08 - Step 6: Final answer
x = 768,323.65
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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.