Finding the Fourth Proportional to 630,125.14, 869,081.21 and 403,791.70
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Solution
The fourth proportional to 630,125.14, 869,081.21 and 403,791.70 is: 556,917.60
Step by Step Solution
- Step 1: Write the proportion equation
630,125.14 : 869,081.21 = 403,791.70 : x - Step 2: Convert to fraction form
630,125.14/869,081.21 = 403,791.70/x - Step 3: Cross multiply
630,125.14x = 869,081.21 × 403,791.70 - Step 4: Simplify right side
630,125.14x = 350,927,779,223.96 - Step 5: Solve for x
x = 350,927,779,223.96/630,125.14 - Step 6: Final answer
x = 556,917.60
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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.