Finding the Fourth Proportional to 692,317.70, 1,036,726.95 and 552,349.70
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Solution
The fourth proportional to 692,317.70, 1,036,726.95 and 552,349.70 is: 827,128.67
Step by Step Solution
- Step 1: Write the proportion equation
692,317.70 : 1,036,726.95 = 552,349.70 : x - Step 2: Convert to fraction form
692,317.70/1,036,726.95 = 552,349.70/x - Step 3: Cross multiply
692,317.70x = 1,036,726.95 × 552,349.70 - Step 4: Simplify right side
692,317.70x = 572,635,819,814.42 - Step 5: Solve for x
x = 572,635,819,814.42/692,317.70 - Step 6: Final answer
x = 827,128.67
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1.5x scale
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.