Finding the Fourth Proportional to 658,725.12, 909,051.12 and 368,369.28
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Solution
The fourth proportional to 658,725.12, 909,051.12 and 368,369.28 is: 508,355.45
Step by Step Solution
- Step 1: Write the proportion equation
658,725.12 : 909,051.12 = 368,369.28 : x - Step 2: Convert to fraction form
658,725.12/909,051.12 = 368,369.28/x - Step 3: Cross multiply
658,725.12x = 909,051.12 × 368,369.28 - Step 4: Simplify right side
658,725.12x = 334,866,506,557.59 - Step 5: Solve for x
x = 334,866,506,557.59/658,725.12 - Step 6: Final answer
x = 508,355.45
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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.