Finding the Fourth Proportional to 742,306.35, 1,024,394.67 and 402,774.60
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Solution
The fourth proportional to 742,306.35, 1,024,394.67 and 402,774.60 is: 555,835.41
Step by Step Solution
- Step 1: Write the proportion equation
742,306.35 : 1,024,394.67 = 402,774.60 : x - Step 2: Convert to fraction form
742,306.35/1,024,394.67 = 402,774.60/x - Step 3: Cross multiply
742,306.35x = 1,024,394.67 × 402,774.60 - Step 4: Simplify right side
742,306.35x = 412,600,153,451.38 - Step 5: Solve for x
x = 412,600,153,451.38/742,306.35 - Step 6: Final answer
x = 555,835.41
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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.