Finding the Fourth Proportional to 692,529.68, 955,691.88 and 390,751.76
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Solution
The fourth proportional to 692,529.68, 955,691.88 and 390,751.76 is: 539,237.95
Step by Step Solution
- Step 1: Write the proportion equation
692,529.68 : 955,691.88 = 390,751.76 : x - Step 2: Convert to fraction form
692,529.68/955,691.88 = 390,751.76/x - Step 3: Cross multiply
692,529.68x = 955,691.88 × 390,751.76 - Step 4: Simplify right side
692,529.68x = 373,438,284,127.71 - Step 5: Solve for x
x = 373,438,284,127.71/692,529.68 - Step 6: Final answer
x = 539,237.95
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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.