Finding the Fourth Proportional to 507,901.99, 700,900.88 and 278,456.53
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Solution
The fourth proportional to 507,901.99, 700,900.88 and 278,456.53 is: 384,267.89
Step by Step Solution
- Step 1: Write the proportion equation
507,901.99 : 700,900.88 = 278,456.53 : x - Step 2: Convert to fraction form
507,901.99/700,900.88 = 278,456.53/x - Step 3: Cross multiply
507,901.99x = 700,900.88 × 278,456.53 - Step 4: Simplify right side
507,901.99x = 195,170,426,918.75 - Step 5: Solve for x
x = 195,170,426,918.75/507,901.99 - Step 6: Final answer
x = 384,267.89
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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.